Question

sin^2(20)+cos (35)+sin^2 (70)_sin (55)

Please help

Answer 1

Hey, question is written wrong in the last
correct question is,
Q. sin^2(70) + cos^2(35) + sin^2(70) - cos^2(55).
sol.:- sin^2(70) + cos^2(35) + sin^2(90 - 20) - cos^2(90 - 35).
= sin^2(20) + cos^2(35) + cos^2(20) - sin^2(35)
= sin^2(20) + cos^2(20) + cos^2(35) + Sin^2(35)
= 1 + 1 (sin^2(theta) + cos^2(theta) = 1)
= 2
I hope you would understand it easily.
and if you can then making it as a brainiest answer.