Question

Value of cos^2 (48) - sin^2 (12)?

Answer 1

@vishweshshrimali5

Answer 2

@.Sam. @Callisto @jhonyy9 @myko @Mani_Jha @experimentX @eliassaab @inkyvoyd @maheshmeghwal9

Answer 3

i am solving it further wait

Answer 4

ok

Answer 5

This question is using formula: -
\[\cos 2\theta and \cos2(2\theta).\]

Answer 6

cos^2=1-sin^2 and sin^2=1-cos^2
so cos^2(48)=1-sin^2(48) and sin^2=1-cos^2(12)
1-sin^2(48)-(1-cos^2(12))
=1-sin^2(48)-1-cos^2(12)
=-sin^2(48)-cos^2(12)...

Answer 7

@mathslover will definitely do it:)

Answer 8

if u take theta= 12

Answer 9

the answer should be