TS EAMCET · Maths · Trigonometric Equations
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Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given: A=2coshx+ysinhx-y+sinh2y ⇒A=2ex+y+e-x-y2ex-y-e-x+y2+e2y-e-2y2 ⇒A=e2x-e2y+e-2y-e-2x2+e2y-e-2y2 ⇒A=e2x-e-2x2 ⇒A=sinh2x
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