Mathematics MCQS for class 12 with Answers
If y=Sec x then dy/dx=
Sec x Tanx
-Cosecx
Cot x
Tan x
If y=Sinhx then dy/dx=
1/Sinhx
Coshx
-Sin hx
-Coshx
Tailor Series Expansion is only valid if it is:
Divergent
Both(a)&(b)
Convergent
None of these
Derivative of ?tan x is:
1/2?tanx
1/2(sec2 x)-1/2
1/2 sec2x/?tanx
?Sec2 x
If y = cos-1 (x/a) then y1 =
1?a2 -x2
1/a?a2 – x2
-1/?a2 -x2
1/?a2 +x2
Derivative of log x is:
1/x In a
1/x
1/x/1/Ina
1/x log a
If f(x) = tanx, then f'(x) = ?
cosec2x
sec3x
-cosec2x
sec2x
if ?(x) = 1/2/3x then f (8) =
1/3
none of these
2/3
1/2
d/dx ax=
x lna
x ax -1
axlna
ax
If f(x) = cos x, then slope of normal at x = 0 is ——————–
Zero
-1
1
undefined
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