Question

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Answer 1

Answer: 90o

Step-by-step explanation:

Answer 2

Answer:

cos x = 4/5

cos y= 3/5

tan y= 4/3

Step-by-step explanation:

Sinx=3/5

Meaning opposite to x / hypotenuse is 3/5.

The height of the triangle is 3 and the hypotenuse is 5.

Use pythagorean theorem to find the base value of the triangle.

Base is 4.

cos x = 4/5

cos y= 3/5

tan y= 4/3

TIP:

S O/H

C A/H

T O/A

This is a fun word play that helps remember all trig functions.

S= Sine

C= Cosine

T= Tangent

O= Opposite

H= Hypotenuse

A= Adjacent