AP EAMCET · Maths · Trigonometric Ratios & Identities
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
1+tanhx21-tanhx2 =1+ex2-e-x2ex2+e-x21-ex2-e-x2ex2+e-x2 =2ex22e-x2 =ex
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