Home
Class 12
MATHS
(cosA + cos3A + cos5A + cos7A)/(cosAcos2...

`(cosA + cos3A + cos5A + cos7A)/(cosAcos2Acos4A)=`

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • TRANSFORMATIONS OF SUMS AND PRODUCTS

    CHHAYA PUBLICATION|Exercise Comprehension Type|6 Videos
  • TRANSFORMATIONS OF SUMS AND PRODUCTS

    CHHAYA PUBLICATION|Exercise Multiple Correct Answers Type|5 Videos
  • TANGENT AND NORMAL

    CHHAYA PUBLICATION|Exercise ASSERTION-REASON TYPE|2 Videos
  • TRIGONOMETRIC INVERSE CIRCULAR FUNCTIONS

    CHHAYA PUBLICATION|Exercise sample questions for competive examination|20 Videos

Similar Questions

Explore conceptually related problems

Prove the following identities : cos2 A + cos 4A + cos 6A + cos8A =4 cosA cos 2 A cos 5 A

(vi) a cos B cos C + b cos C cosA + c cosA cos B=(abc)/(4R^(2))

prove that (sinA+sin3A+sin5A+sin7A)/(cosA+cos3A+cos5A+cos7A)=tan4A

lim_(x to 0) (cos5x-cos7x)/(cosx-cos5x)

Prove that (sin3A+sinA)sinA+(cos3A-cosA)cosA=0

If A+B+C=180^@ , then prove that cos2A + cos2B +cos2C=-1-4cosA cosB cosC .

(v) (b^(2)-c^(2))/(cos B + cos C) + (c^(2)-a^(2))/( cos C + cosA) + (a^(2)-b^(2))/(cos A + cos B)=0

Column I Column II The value of ((4+sec20^0)/(cosec20^0))^2 , is p. 1 The minimum value of (1+cos2x+8sin^2x)/(2sin2x),x(0,pi/2) is q. 2 The value of (8sin40^0dotsin50^0dottan10^0)/(cos80^0) r. 3 If (cos5A)/(cosA)+(sin5A)/(sinA)=a+bcos4A , then (a^2)/b is s. 4

((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x + cos 3x ))= tan 6x

Prove that, (1+cosA+cos2A)/(sin A+sin2A)=cotA