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Prove that (sinA / 1+cos A+1+cosA /sinA)( sinA/ 1-cosA- 1-cos A/ sinA)= 4cosec×cotA |
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Answer» Step-by-step explanation:Hey !!! Here is ur solution ;- from LHS sinA/1 + cosA multiplying by (1 - cosA) on NUMERATOR and denominator sinA ___(1 - cosA) ----------× 1+cosA_(1-cosA) sinA - sinA×cosA ----------------------- 1² - cos²A sinA - sinA×cosA ------------------------ sin²A sin(1-cosA) --------------- sin²A 1 - cosA ------------ sinA => 1/sinA -cosA/sinA ********************************** Hope it helps you !! |
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