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Question
(3x + 5)(1 + tan x)
Sum
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Solution
`d/(dx) (3x + 5)(1 + tan x)`
= `(3x + 5) d/(dx) (1 + tan x) + (1 + tan x) d/(dx) (3x + 5)`
= `(3x + 5)(sec^2x) + (1 + tan x)(3)`
= `3x sec^2x + 5 sec^2x + 3 + 3 tan x` ....[Using product rule]
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The Concept of Derivative - Derivative of Slope of Tangent of the Curve
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