Yes it is true:
(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful
791.68 will be your answer.....
I think it is 0.149x10^-4
4x12 = 48 and4x6 = 24 so
Add 48 and 24 =72
Which one they both is really easy
