Home
Class 12
MATHS
Prove that :cos 4x = 1 - 8 sin^2 x cos^2...

Prove that :`cos 4x = 1 - 8 sin^2 x cos^2 x`.

Answer

Step by step text solution for Prove that :cos 4x = 1 - 8 sin^2 x cos^2 x. by MATHS experts to help you in doubts & scoring excellent marks in Class 12 exams.

Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

cos4x=1-8sin^(2)x cos^(2)x

cos4x=1-8sin^(2)x cos^(2)x

Prove the following cos4x=1-8"sin"^(2)xcos^(2)x

Prove that sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

Prove that sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

Prove that (cos 3 x)/(sin 2 xsin 4x)+(cos 5x)/(sin 4xsin 6x)+(cos 7x)/(sin 6xsin 8x)+(cos 9x)/(sin 8x sin 10x) =(1)/(2) (co sec x)[co sec2x-co sec 10x]

Prove that (1 + sin x-cos x) / (1 + sin x + cos x) + (1 + sin x + cos x) / (1 + sin x-cos x) = 2cos ecx

Prove that ( " cos " 4x + " cos " 3x + " cos " 2x)/(" sin " 4x + " sin " 3x + " sin " 2x) = " cot 3x

Prove that (cos x + sin x)/(cos x - sin x) - (cos x - sin x)/(cos x + sin x) = 2 tan x

Prove that (cos x + cos y)^(2) + (sin x + sin y)^(2) = 4 cos^(2) ((x-y)/(2))

Home
Profile