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If |a|=|b|,then (a+b)*(a-b) is...

If `|a|=|b|,then (a+b)*(a-b)` is

A

positive

B

negative

C

zero

D

None of these

Text Solution

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The correct Answer is:
C
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 21-PAPER 2 (MATHEMATICS)
  1. If one end of the diameter is (1, 1) and the other end lies on the lin...

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  2. The centre of a circle passing through the points (0, 0), (1, 0) and t...

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  3. If |a|=|b|,then (a+b)*(a-b) is

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  4. "The maximum or the minimum of the objective function occurs only at t...

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  5. The possiblility that a non-leap year has 53 sundays, is

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  6. The number of common tangents to the circles x^(2)+y^(2)-y=0and x^(2)+...

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  7. The speed v of a particle moving along a straight line is given by a+b...

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  8. The area bounded by the curve |x|+|y|=1 and axis of x, is given by

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  9. The integrating factor of the differential equation (dy)/(dx)(x(log...

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  10. The sum of n terms of two arithmetic progressions are in the ratio 2n+...

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  11. Dual of (x vv y) ^^ (x vv 1) = x vv x ^^ y vv y is

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  12. The sum o f series 1+4/5+7/(5^2)+(10)/(5^3)+oo is 7//16 b. 5//16 c. ...

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  13. The value of int(-pi//4)^(pi//4) x^(3) sin^(4) x dx is equal to

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  14. If x=asintheta and y =b cos theta, then (d^(2)y)/(dx^(2)) is

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  15. If x=asintheta and y =b cos theta, then (d^(2)y)/(dx^(2)) is

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  16. The plane x-2y+z-6=0 and the line x/1=y/2=z/3 are related as the line ...

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  17. The direction consines of the line segment joining points (-3,1,2)and ...

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  18. The focal distance of a point on the parabola y^2=12 xi s4. Find the a...

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  19. The equation of a line passing through (2,-3) and inclined at an angle...

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  20. Which of the following is a contradiction ?

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