Which expression is equivalent to ?
Answer and explanation
Correct answer: D.
.
- Step 1: Recall the definitions of the hyperbolic functions:
- Step 2: Let . The given expression is .
Answer
.
Why not the others: '' has a plus sign: ; '' is the ratio ; '' uses argument instead of .
Practise more Functions, Logarithms and Exponential Models.
Free questions with an explanation for every one, and full timed EmSAT Achieve (UAE) mock tests.