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30 points for trig help!!!! question below
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1 vote
30 points for trig help!!!! question below

30 points for trig help!!!! question below-example-1
User OmriToptix
by
8.0k points

1 Answer

5 votes

Answer:

For theta = 0 , π , 2π , 7π/6 and 11π/6

this equation holds !!

Explanation:

[ Refer to the attached file ]

  • Used Formula :-

* Cos2x = 1 - 2sin²x

* Sinx is zero for x = nπ

* Sinx is negative in 3rd and 4th quadrant !!

30 points for trig help!!!! question below-example-1
User Alkimake
by
8.0k points
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