If cos pi x = x ^(2) -x + (5)/(4), then...

If `cos pi x = x ^(2) -x + (5)/(4),` then the value of x will be : (a) 0 (b) 1 (c) −1 (d) None of these

A

0

B

1

C

`-1`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:

D

Topper's Solved these Questions

ALGEBRA
MOTHERS|Exercise MULTIPLE CHOICE QUESTION|194 Videos
AGE
MOTHERS|Exercise MULTIPLE CHOICE QUESTION|30 Videos
CO-ORDINATE GEOMATRY
MOTHERS|Exercise OBJECTIVE QUESTION|72 Videos

Similar Questions

Explore conceptually related problems

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

If a (A) x=0 (B) x=1 (C) x=2 (D) None of these.

If the area of the region bounded by y=sinax, y=0, x=pi/a and x=pi/(3a) is 4, then the positive value of a is (A) 1/2 (B) 2 (C) 5/8 (D) none of these

If f(x)={(1-cos10 x)/(x^2)\ \ \ ,\ \ \ x 0 , then the value of a so that f(x) may be continuous at x=0 , is (a) 25 (b) 50 (c) -25 (d) none of these

If x cos y+y cos x=pi then the value of y'(0) is equal to pi(b)-pi(c)1(d)0

If f(x)=sin^(-1)cos x, then the value of f(10)+f'(10) is (a)11-(7 pi)/(2) (b) (7 pi)/(2)-11 (c) (5 pi)/(2)-11( d) none of these

If f(x)=(1-cos2x)/(x^(2)) , x!=0 and f(x) is continuous at x=0 ,then f(0)= (a) 1 (b) 2 (c) 3 (d) None of these

int_0^2 x^3[1+cos((pix)/2)]dx , where [x] denotes the integral part of x , is equal to (A) 1/2 (B) 1/4 (C) 0 (D) none of these

Let cos^(-1) (4x^(3) -3x) = a + b cos^(-1) x If x in [-1, -(1)/(2)) , then the value of a + b pi is

Let alpha and beta be any two positive values of x for which 2cos x, l cos x|, and 1-3cos^(2)x are in G.P.The minimum value of | alpha-beta| is (pi)/(3) (b) (pi)/(4)(c)(pi)/(2) (d) none of these

MOTHERS-ALGEBRA -MULTIPLE CHOICE QUESTION

If cos pi x = x ^(2) -x + (5)/(4), then the value of x will be : (a...
Text Solution
|
If (5 sqrt5 x^3-3 sqrt3 y^3) div (sqrt5x- sqrt3y)=(Ax^2+By^2+Cxy), the...
Text Solution
|
If x+y+z=19, x^2+y^2+z^2=133 and xz=y^2, then the difference between z...
Text Solution
|
If x^(4) + x^(-4) = 194 , x gt 0 then the value of ( x - 2) ^(2) i...
Text Solution
|
If 16x^2+9y^2 +4z^2= 24(x-y+z)-61, then the value of (xy + 2z) is : ...
Text Solution
|
If x + y + z = 19, xy + yz + zx = 114, then the value of sqrt(x^3+y^3+...
Text Solution
|
If [8(x+y)^3- 27(x-y)^3] div (5y-x) = Ax^2+Cy^2+Bxy, then the value of...
Text Solution
|
If a^(2) + b^(2) + 64c^(2) + 16c + 3 = 2(a+b), then the value of 4a^(7...
Text Solution
|
If x + y = 1 and xy(xy - 2) = 12, then the value of x^4+y^4 is: यदि ...
Text Solution
|
If (27x^3-343y^3) div (3x-7y)=Ax^2+By^2 +7Cyx, then the value of (4A -...
Text Solution
|
If a^2+b^2+c^2=21, and a + b + c = 7, then (ab + bc + ca) is equal to ...
Text Solution
|
If ab + bc + ca = 8 and a^2+b^2+c^2=20, then a possible value of 1/2 (...
Text Solution
|
If (8x^3-27y^3)div (2x-3y)= (Ax^2+Bxy+Cy^2), then the valueof (2A + B ...
Text Solution
|
If x = a + (1)/(a) and y = a - (1)/(a) then sqrt(x^(4) + y^(4) - 2x^(2...
Text Solution
|
If 2x^(2) + y^(2) + 6x - 2xy + 9 = 0, then the value of (4x^(3) - y^(3...
Text Solution
|
If x + y = 12 and xy = 27, x > y, then the value of (x^3-y^3) is: यद...
Text Solution
|
If x^2+y^2+z^2=133,xy +yz + zx = 114 and xyz = 216, then the value of ...
Text Solution
|
If 3 sqrt3 x^3-2sqrt2 y^3=(sqrt3x- sqrt2y) (Ax^2+Cxy+By^2), then the v...
Text Solution
|
If a + (1)/(a) = 3, then (a^(4) + (1)/(a^(4))) is equal to :
Text Solution
|
If a + b + c = 2, a^(2) + b^(2) + c^(2) = 26, then the value of a^(3) ...
Text Solution
|
If (x^3-2 sqrt2 y^3) div (x-sqrt2 y)= (Ax^2+Bxy+Cy^2), then, (2A+4 sqr...
Text Solution
|