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CBSE Class 11-science Answered

<div>Find the value of :-</div> <div>&nbsp;Sec(90-A).sin(90-A)</div> <div>&nbsp;</div>
Asked by Kusum and Sanjeet | 09 Jun, 2015, 10:11: PM
Expert Answer
begin mathsize 14px style S e c left parenthesis 90 minus A right parenthesis. S i n left parenthesis 90 minus A right parenthesis equals C o s e c A. C o s A equals fraction numerator 1 over denominator S i n A end fraction. C o s A equals fraction numerator C o s A over denominator S i n A end fraction equals C o t A end style
Answered by Rashmi Khot | 10 Jun, 2015, 09:12: AM
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