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Show taht 2tan^-1(tan(alpha/2)tan(pi/4-b...

Show taht `2tan^-1(tan(alpha/2)tan(pi/4-beta/2))=tan^-1((sinalphacosbeta)/(cosalpha+sinbeta))`

Text Solution

Verified by Experts

The correct Answer is:
` = tan^(-1) ((sin alpha.cos beta)/(cos alpha + sin beta))`
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