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If -5,k and -1 are in AP, then the valu...

If ` -5,k and -1` are in AP, then the value of k is equal to

A

`-5`

B

`-3`

C

`-1`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
B
Since angles -5 , k and 1 are in Ap.
then `dk=(-5-1)/(2)=-(6)/(2)=-3`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 07-PAPER 2( MATHEMATICS)
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  2. Which term of the series sqrt2,2/3,(2sqrt2)/9,..... is 16/2187?

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  3. If a striaght line passes through the points (-1/2,1) and (1,2) then ...

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  4. The slopes of the lines which make an angle 45^@ with the line 3x-y=-5...

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  5. The length of the latusrectum of the ellipse 16x^(2)+25y^(2)=400 is

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  6. The derivative of sin^(-1)((2x)/(1+x^(2))) with respect to cos^(-1)((1...

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  7. If the function y= sin^(-1)x, "then" (1-x^(2))(d^(2)y)/(dx^(2)) is equ...

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  8. The function f(x)=e^(-|x|) is

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  9. If X is a binomial variate with the range {0, 1, 2, 3, 4, 5, 6} and P...

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  12. int(1+tan^2x)/(1-tan^2x)dx

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  13. The area (in sq unit) of the triangle formed by x+y+1=0 and the pair o...

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  14. The equation y^(2)-x^(2)+2x-1=0, represents

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  15. The value of the integral int f(0)^(2)|x^(2)-1|dx is

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  16. If AB=I and B=A', then

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  17. If the system of equations 2x-3y+5z=12, 3x+y+lambdaz= mux7+y+8z=17 ha...

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  18. The differential equation of all parabolas whose axis are parallel ...

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  19. If (x^2+y^2)dy=xydx and y(1)=1 and y(xo)=e, then xo=

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  20. The integrating factor of x(dy)/(dx)+(1+x)y=x is

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