Prove that (sinA+cosA)/(sinA-cosA)+(sinA-cosA)/(sinA+cosA)=2/(2sin^2A-1)=2/(1-2cos^2A) /Trigonometry

If α and β are the zeros of the quadratic polynomial f(x)=4x^2-5x-1. Find the value of α^2β+αβ^2

The ratio of the 11th term to 17th term of an A.P. is 3:4.Find the ratio of 5th term to 21st term

Water is flowing at the rate of 15km/hr through a pipe / Surface Areas and Volumes Class 10 Maths

If (8+√5)/(8-√5)+(8-√5)/(8+√5)=a+8√5b / Rationalizing the denominator / Surds

If y√(x^2+1) = log(√x^2+1)-x), show that (x^2+1)dy/dx+xy+1=0 / Differentiation Class 12 Maths

The school auditorium was to be constructed to accommodate at least 1500 people / Case Study

A circular field has a circumference of 360km. Three cyclist start together and can cycle 48,60,72km

Two water taps together can fill a tank in 9 3/8 hours. The tap of larger diameter takes 10 hours

Find the value of k such that the polynomial x^2-(k+6)x+2(2k-1) has sum of its zeros equal to half

If x=5-√21/2,prove that (x^3+1/x^3)-5(x^2+1/x^2)+(x+1/x)=0 / Class 9 Maths / RS Aggarwal

The sum of first three terms in an A.P. is 18.If the product of the first and third term is 5 times

Prove that (tan theta+sec theta-1)/(tan theta-sec theta+1) = (1+sin theta)/cos theta / Trigonometry

The discuss throw is an event in which an athlete attempts to throw a discuss. The athlete spins

A plane left 30 minutes late than it's scheduled time and in order to reach the destination 1500 km

The equivalent resistance between points A and B of the circuit given / Class 10 and 12th Physics

When an object is placed 20 cm from a concave mirror, a real image magnified four times is formed.

Differentiate log (sinx/(1+cosx)) Find dy/dx / Chain Rule / log ((sinx)/(1+cosx)) Find dy/dx

The sum of first and eighth terms of an A.P. is 32 and their product is 60.Find the first term

In the given figure, AB||CD. Find the angles x,y and x / Lines and Angles Class 9 Maths

Solve x^2 - 2ax + (a^2 - b^2)=0 by the factorisation method / Quadratic Equation Class 10 Maths

Prove that tanA/(1-cotA) + cotA/(1-tanA) = 1+tanA+cotA / Trigonometry Class 10 Maths

If α and β are the zeros of the polynomial f(x)=ax^2+bx+c. Find 1/α^2+1/β^2, (α/β+β/α)^2

Two poles of equal height on either side of the road / Case study questions class 10 maths

Dentist uses a small mirror with a radius of curvature of 40 mm to locate a cavity / Light Class 10

Trick to find composition of first 30 elements and their distribution in various shells

The surface area of a solid metallic sphere is 2464 sq.cm. It is melted and recast into solid

Prove that (2+√3)/5 is irrational number / Prove that (2+root3)/5 is irrational / Real Numbers

Find the sum of n terms of the series (3-1/n)+(3-2/n)+(3-3/n)+.. / CBSE Maths Arithmetic Progression

Using quadratic formula solve the equation: p^2 x^2+(p^2-q^2)x-q^2=0 / Quadratic Equation Class 10

Differentiate e^sin√x Find dy/dx / Differentiation of e to the power sin root x / e^sin(sqrt(x))

If alpha and beta are zeros of the polynomial x^2+3x+2.Find a quadratic polynomial whose zeros are

Chocolate is in the form of quadrilateral with sides 6 cm and 10 cm / Case study questions class 9

If sin theta + cos theta = x, prove that sin^6 theta + cos^6 theta = (4-3(x^2-1)^2)/4 / Trigonometry

If (9^n×3^2×3^n - 27^n)/(3^3m×2^3)=1/27, Prove that m-n=1 /Number System / RD Sharma / Class 9 Maths

A bright object 100 mm high stands on the axis of a concave mirror of focal length 100 mm

Find the values of a and b in (3-root5)/(3+2 root5)=aroot5-b/11 / How to rationalize the denominator

A hemispherical bowl of internal diameter 36 cm contains liquid / Surface Areas and Volume Class 10

If alpha and beta are zeros of the polynomial 3x^2-4x+1.Find a quadratic polynomial whose zeros are

If sin y = x sin(a+y) prove that dy/dx=sin^3(a+y)/sina / Differentiation / Calculus / Class 12 Maths

How to express a rational number in p/q form / Express 0.00352 bar in p/q form / 1.712 bar in p/q

If the mid point of the line segment joining the points A(3,4) and B(k,6) is P(x,y) and x+y-10=0.

Solve the quadratic equation 9x^2 - 6b^2x - (a^4-b^4) = 0 / Important Board Question Class 10 Maths

If acos^3 theta + 3acos theta sin^2 theta = m, asin^3 theta + 3acos^2 theta sin theta = n. Prove

A converging mirror forms a real image of height 4 cm of an object of height 2 cm placed 20 cm away

If 7+3√5/3+√5 + 7-3√5/3-√5 = a+b√5,find the values of a and b / How to rationalise the denominator?

If α and β are the zeroes of the quadratic polynomial x^2-p(x+1)-c, show that (α+1)(β+1)= 1-c

Once four friends Rahul,Arun,Ajay and Vijay went for a picnic / Case Study Questions Class 9 Maths

Find the common difference of AP whose first term is 5 and sum of first four terms is half the sum

In the given figure AB||CD.Find the angles x,y and z / Lines and Angles / CBSE Class 9 Maths

A disabled automobile is pulled by means of two ropes as shown / Engineering Mechanics / Resultant

An object 2 cm high is placed at a distance of 16 cm from a concave mirror which produces a real

Solve the quadratic equation: 2x^2 + ax - a^2 = 0 / Important Board Question Class 10 Maths

Point A lies on the line segment PQ joining P(6,6) and Q(-4,-1) in such a way that PA/PQ=2/5

Differentiate tan^-1((sqrt(1+sinx)/sqrt(1-sinx)) find dy/dx / Calculus / Differentiation JEE / NEET

Case Study Questions Class 9 / Mathematics teacher of a school took her class 9th standard students

In the given figure, AB||CD. Find the angles x, y and z / Lines and Angles / CBSE Class 9

Rationalising the denominator with 3 terms / Rationalise 1/(4+root2+root5) / Rationalisation / ICSE

A man standing on the bank of the river observes that the angle of elevation of a tree

Resultant and Equilibrium Analysis / Free Body Diagram / Equilibrium of Three Cylinders