Can Someone explain me the 3rd step please. Why was squareroot and square taken?
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Step-by-step explanation:
in third step cosec square is breakup into 1 minus sin square x ...
and in numerator one plus sin x to the hall squared is break up into two times of it.
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1
Answer:
squaring both sides and root taken because there is no effect of taking and to make identity just as multiplying and dividing both sides
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