Mathematics MCQS for class 12 with Answers Chapter 2

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Mathematics MCQS for class 12 with Answers


If f(x)=1/x2 then f'(-1)=
2-Jan
1
-1
2

For x1,x2? (a,b) fis increasing on the interval (a,b) for x2 > x1 if
f(x2)?f(x1)
f(x2)>f(x1)
f(x2)<f(x1)
f(x2)?f(x1)

d/dx[axm+bxn]
amxm-1+bnxn-1
mxm-1 + nxn-1
xm-1 +xn-1
axm-1 +bxn-1

The notation f
Newton
None of these
Lagrange
Caunchy

The function f(x) = ax2 + bx + c has maximum value if
a>0
a<0
a>2
a>1

d/dx (tan-1x+ cot-1x) =
1
0
-1
2

If y= Tanhx then dy/dx=
-Sec2hx
Sechx
Cothx
Sec h2 x

If f(x)=c then f'(x)=
2c
0
X
1

If y=ax then dy/dx =
xax
ax ln a
ax/ lna
None of these

d/dx tan-1 [Sin2x/1+ Cosx] =………..
1
0
none of these
2

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