Integrals
NCERT Class 12
CBSE
Grade 12
Question:
$\int \tan^2 x dx$ is equal to:
(a) $\tan x - x + C$
(b) $\tan x + x + C$
(c) $\sec^2 x - x + C$
(d) $\dfrac{\tan^3 x}{3} + C$
Step-by-Step Solution
$\int (\sec^2 x - 1) dx = \tan x - x + C$. [1.0 Mark]
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🎯 Official CBSE Marking Scheme:
Evaluating integral $= \tan x - x + C$: 1.0 Mark
Correct Answer: $\tan x - x + C$
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