Question

Help .. :(

Answer 1

If \[\cos 9\alpha = \sin \alpha \] and \[9\alpha < 90 \] degree

Answer 2

use the phase shift:


\(sin(\alpha) = cos(90^o - \alpha)\)

Answer 3

its to find \[\tan 5\]

Answer 4

@UsukiDoll help pls

Answer 5

tan 5

Answer 6

\[\tan 5 \alpha \]

Answer 7

@midhun.madhu1987 help