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If sin beta=sin(2alpha+beta) then find the value of (cotalpha+cot(alpha+beta))(cot beta-5cot(2alpha+beta))? |
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Answer» Solution :`((COS ALPHA)/(sinalpha)+(cos(alpha+BETA))/(sin (alpha+beta)))((cosbeta)/(sinbeta)-(5 cos(2alpha+beta))/(sin(2alpha+beta)))` `(sin(2alpha+beta))/(sinalpha(alpha+beta))((cosbeta)/(sinbeta)-(5 cos(2alpha+beta))/(5 sinbeta))` `(5 sin beta)/(sin alpha.sin(alpha+beta))((cosbeta-cos(2alpha+beta))/(sin beta))` `(10 (sin alpha.sin(alpha+beta)))/(sinalpha.sin(alpha+beta))=10 ` |
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