Question

Number 8. two angles ,

Answer 1

`cos(B)=(3)/(2)`

Explanation:

∠A and ∠B are complementary because they are the two non-right angles of a right triangle. This means that sinA=cosB and sinB=cosA.

Therefore,

`\begin{gathered} If\text{ sin\lparen A\rparen=}(√(3))/(2) \\ Then, \\ cos(B)=(√(3))/(2) \end{gathered}`