1. What is the simplified value of (cos A + sin A)(cot A + tan A)?
Write Comment
Comments
By: anil on 05 May 2019 01.47 am
Expression : (cos A + sin A)(cot A + tan A) = $$(cosA+sinA)(frac{cosA}{sinA}+frac{sinA}{cosA})$$ = $$(cosA+sinA)(frac{sin^2A+cos^2A}{sinAcosA})$$ = $$frac{cosA+sinA}{sinAcosA}$$ = $$frac{cosA}{sinAcosA}+frac{sinA}{sinAcosA}$$ = $$frac{1}{sinA}+frac{1}{cosA}=cosecA+secA$$ => Ans - (A)
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use