Question

evaluate (a) sin^-1 (1/2) and (b) tan ( arcsin 1/3)

Answer 1

ok
sinA = 1/2
what is A?

Answer 2

it is inverse i think

Answer 3

sin

Answer 4

sine of what angle gives you 1/2

Answer 5

1?

Answer 6

think unit circle
0,pi/6, pi/4 ....

Answer 7

for part b)

you have to write tan in terms of only sine

tan = sin/cos = sin/sqrt(1-sin^2)

then sin(sin^-1x) = x

--> (1/3)/sqrt(1-1/9)

Answer 8

sorry im kind of a bit slower :(