If y = aeˣ+ be⁻ˣ + c Where a, b, c are parameters, they y’ is equal to
Correct Answer :
aeˣ – be⁻ˣ
Solution :
The correct option is aex – be–x.
To find the first derivative of the given function, let us start with the equation:
where a, b, and c are constant parameters.
We differentiate both sides with respect to x to find y' (or dy/dx):
Using the sum rule of differentiation, we can differentiate each term individually:
Now, let us evaluate the derivative of each term:
1. For the first term, a is a constant coefficient, and the derivative of ex with respect to x is ex:
2. For the second term, b is a constant coefficient. Applying the chain rule to e–x, we get:
3. For the third term, c is a constant parameter, and the derivative of any constant is 0:
Combining all the terms back together, we get:
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