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CBSE Class 11-science Answered

trigno
Asked by adilkhan | 22 Feb, 2010, 11:39: AM
answered-by-expert Expert Answer

here we have used the formula

sinA+sinB=2sin(A+B/2)cos(A-B/2)

Answered by | 27 Feb, 2010, 12:13: PM

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CBSE 11-science - Maths
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