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Question

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Answer 1

15)

The exact value of

Find the value.

16)

The value of

Find the value.

Answer 2

17)

The value of

Find the value.

18)

The value of

Converts from radians into degrees by multiply

Find the value.

Answer 3

21)

Step 1:

Observe the right angle triangle.

The triangle measures angles and sides are

Apply sine rule:

Find Angle

Since,

Substitute

Consider side

Find Side

Substitute in sine rule.

Solution:

The side value of the right angle triangle is

22)

Observe the right angle triangle.

The triangle measures angles and sides are

Find Angle 

Since,

Substitute

The angle of the right angle triangle is