Another one. 2/3 + 1/6?
2 answers:
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By applying the formula of trigonometric function the right hand side will
be equal to right hand side which is 1-/
=cos2x.
Given: 1-/
=cos2x.
Taking right hand side first which is cos2x.
We know that cos2x=
Now we will solve the left hand side of the equation give which is
1-/
=1-/1+
[secant square x minus tangent square x is equal to 1]
By putting both values left hand side and right hand side we will find our solution which is :
1-tan^{2}x/1+tan^{2}x=1-/1+
.
Hence proved
Learn more about trigonometric functions at brainly.com/question/24349828
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