Question

Just do number 3 quick please

Answer 1

Explanation:

a) Sin A = opposite/hypothenuse

Sin A = 5/13 ≈ 0.3846..

b) Cos A = adjacent/hypothenus

Cos A = 12/13 ≈ 0.9230..

c) Tan A = opposite/adjacent

Tan A = 5/12 ≈ 0.4166..

d) we will use the inverse Sine function

< A = sin^-1(5/13)

< A = sin^-1(0.3846) ≈ 22.62°

P.S. You can use any of the three inverse functions to find the angle: sin^-1 | cos^-1 | tan^-1

Answer 2

Explanation:

Sin A =
`(opposite side)/(hypotenuse)=(5)/(13)\\\\`

Cos A =
`(Adjacent side)/(hypotenuse)=(12)/(13)`

Tan A =
`(opposite side)/(adjacent side)=(5)/(12)`

A = tan⁻¹ (5/12) = 22.61°