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Find the exact values of the sine, cosine, and tangent of the angle. 1) 195 degrees and 2) 7pi/12?

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Find the exact values of the sine, cosine, and tangent of the angle. 1) 195 degrees and 2) 7pi/12?

asked Feb 11, 2015 in TRIGONOMETRY by anonymous
reshown Feb 11, 2015 by goushi

2 Answers

0 votes

(1)

Step 1:

The angle is .

Additive identity of the sine function is  : image.

image

Additive identity of the cosine function is  : image.

image

Additive identity of the tan function is  : image.

image

Solution :

imageimage, and image.

answered Feb 16, 2015 by yamin_math Mentor
0 votes

(2)

Step 1:

The angle is .

Additive identity of the sine function is  : image.

image

Additive identity of the cosine function is  : image.

image

Additive identity of the tangent function is  : image.

image

Solution :

imageimage , and image.

answered Feb 16, 2015 by yamin_math Mentor

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