Sin 3pi 2
sin (3pi / 2 + x) Easy?
Use the same number of angles for life:
sin (a + b) = (sin a) (cos b) + (cos a) (sin b)
sin (3Â € / 2 + x) = (sin 3Â / 2) (case x) + (case 3Â € / 2) (sin x)
= (1) (cos x) + (0) (sin x)
= Caucasus
Sin 3pi 2
Sin 3pi 2
Sin (3pi / 2 + x)
= Sin (270+ x)
= Caucasus
Only 8 = D
= Caucasus
Sin 3pi 2
Sin 3pi 2
sin (3pi / 2 + x) Easy? 3
Please reply with work. Thank you very much.
Use the same number of angles to sign:
sin (a + b) = (sin a) (cos b) + (cos a) (sin b)
Sin (3Â € / 2 + x) = (sin 3Â / 2) (cos x) + (cos 3Â € / 2) (sin x)
= (1) (cos x) + (0) (sin x)
= cosx
Sin 3pi 2
Sin 3pi 2
Sin (3pi / 2 + x)
= Sin (270+ x)
= cosx
