Integrals - Online Test
Q2. dx is equal to
Answer : Option D
Explaination / Solution:
[−log| cosx|+log| sin x|]=log | tan x|+C
Q4. dx is equal to
Answer : Option A
Explaination / Solution:
∫cos((x−a)+a)cos(x−a)dx=∫cos(x−a)cosa−sin(x−a)sinacos(x−a)dx=∫{cosa−sinatan(x−a)}dx.xcosa+sinalog|cos(x–a)|+C
Q5. Which of the following is different from
Answer : Option C
Explaination / Solution:
is equal to
Q8.
dx is equal to
Answer : Option B
Explaination / Solution:
∫1xdx=loge|x|+C
Q9. If ∫ f(x) dx = f (x), then
Answer : Option B
Explaination / Solution:
It implies that the function remains same after integrating or differentiating it. So the function must be ex
