Home
Class 11
MATHS
Prove that: cot 2A=(cot^(2)A-1)/(2 c...

Prove that:
`cot 2A=(cot^(2)A-1)/(2 cot A)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3(g)Long Answer type Question-I|18 Videos
  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3(h)Short Answer type Question|3 Videos
  • TRIGONOMETRY

    MODERN PUBLICATION|Exercise Exercise 3( f)Long Answer type Question-II|2 Videos
  • STRAIGHT LINES

    MODERN PUBLICATION|Exercise Chapter test|12 Videos

Similar Questions

Explore conceptually related problems

Prove that (b + c -a) (cot.(B)/(2) + cot.(C)/(2)) = 2a cot.(A)/(2)

Prove that: (tan A)/(1+tan^2A)^2 + (cot A)/(1+cot^2A)^2 = sin A cos A .

If A=60^(@) and B=30^(@) then prove that: cot(A-B)=(cot A cot B+1)/(cot B-cot A)

Prove that : cot ^(-1)7+cot^(-1)8+cot^(-1)18=cot^(-1)3

Prove that: cot2A + tanA= cotA - cot 2A

Prove that cot((pi)/(4)-2cot^(-1)3)=7

If A+B+C=pi Prove that cot A/2+cot tB/2+cot C/2=cot A/2cot B/2cot C/2

If A+B+C=pi , prove that : cot( A/2)+ cot(B/2) + cot( C/2) = cot( A/2) cot(B/2) cot(C/2)

Prove that cot 2x cot x- cot 3x cot 2x - cot 3x cot x=1

Prove that: cot xcot 2x-cot2x cot3x-cot3x cot x=1