
Prove that .
Answer
453.7k+ views
Hint: Assume and then use the trigonometric formula, and to solve the question.
Complete step-by-step answer:
We have been given to prove - .
Assuming
Therefore, .
Now using the trigonometric formula, and , we can write-
Therefore, LHS = RHS {Hence Proved}.
Note: Whenever such types of questions appear, first expand the term by using the trigonometric formula – and the trigonometric formula , and then simplify the expression to prove it equal to the RHS.
Complete step-by-step answer:
We have been given to prove -
Assuming
Therefore,
Now using the trigonometric formula,
Therefore, LHS = RHS {Hence Proved}.
Note: Whenever such types of questions appear, first expand the term
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