Math, asked by januindhushiva, 1 year ago

please anyone help me in finding the answer

1. cos180

2. sin275

3. cos5

4. sin5

5. tan180

6. sec324

Answers

Answered by nagathegenius

0

Answer:

Step-by-step explanation:

cos180=cos2(90)

=cos2(theta)

=2cos^2theta -1

=theta =90

=2cos^2(90)-1

=-1

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