Question

Can someone help me with some trig formula questions, I will fan and medal

Answer 1

k

Answer 2

\[\cos (\sin^{-1} \frac{ 2 }{ 3 } + \tan^{-1} \frac{ 3 }{ 2 })\]
I have to find the exact value

Answer 3

the answer is -0.14125108

Answer 4

I cant use a calculator

Answer 5

HI!!

Answer 6

use the addition angle formula for cosine

Answer 7

\[\cos(A+B)=\cos(A)\cos(B)-\sin(A)\sin(B)\]

Answer 8

some of these numbers you know, the rest you have to find
for example if \(A=\sin^{-1}(\frac{2}{3})\) then you know \(\sin(A)=\frac{2}{3}\)

Answer 9

What would be my A and B?

Answer 10

@misty1212