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7 x 3 - {4 x (6 - 3) } =...

7 x 3 - {4 x (6 - 3) } =

A

9

B

15

C

12

D

none of the above

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The correct Answer is:
B
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From the sum of 6x^(4) - 3x^(3) + 7x^(2) - 5x + 1 and -3x^(4) + 5x^(3) - 9x^(2) + 7x - 2 subtract 2x^(4) - 5x^(3) + 2x^(2) - 6x - 8

If (3x-7)^3+(3x-8)^3+(3x+6)^3= 3 (3x-7) (3x -8) (3x +6) , then what is the value of x? यदि (3x-7)^3+(3x-8)^3+(3x+6)^3= 3 (3x-7) (3x -8) (3x +6) हैतो x का मान क्या है?

simplify: (i) 2p^(3) - 3p^(2) + 4p - 5- 6p^(3) + 2p^(2) - 8p - 2 + 6p + 8 (ii) 2x^(2) - xy + 6x - 4y + 5xy - 4x + 6x^(2) + 3y (iii) x^(4) - 6x^(3) + 2x - 7 + 7x^(3) - x + 5x^(2) + 2 - x^(4)

Reduce (3x^(2) - 11 x- 4)/(6x^(2) - 7x - 3) to its lowest terms.

QUANTUM CAT-GEOMETRY-QUESTION BANK
  1. In the given figure of circle AB is the diameter with length 20 cm and...

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  2. In the adjoining figure BD is the diameter of the circle and angleBCA ...

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  3. 7 x 3 - {4 x (6 - 3) } =

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  4. In a circle O is the centre and angleCOD is right angle. AC = BD and C...

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  5. In the given triangle ABC, CD, BF and AE are the altitudes. If the rat...

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  6. In the adjoining figure AB || CD and PQ = SR, then :

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  7. In the given figure AB, CD and EF are three towers. The angle of eleva...

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  8. In the equilateral triangle ABC, AD = DE = BE, D and E lies on the AB....

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  9. The sides of a right-angled triangle are in the ratio x : ( x + 1 ) :...

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  10. In a triangle ABC, O is the centre of incircle PQR, angleBCA = 75^(@),...

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  11. Y has to score 40% marks to pass. He gets 20 marks and fails by 40 mar...

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  12. In the above question (number 28), what is the value of angleTPC?

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  13. In the adjoining figure AT and BT are the to two tangents at A and B r...

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  14. In the adjoining figure O is the centre of the circle. angleAOD =120?^...

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  15. In a right angled triangle ABC, CD is the perpendicular on the hypoten...

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  16. In the triangle ABC, MN is parallel to AB. Area of trapezium ABNM is t...

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  17. 285 is summation of 3 numbers. Ratio between 2nd and 3rd numbers is 6:...

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  18. A man got Rs. 130 less, as simple interest, when he invested Rs. 2000 ...

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  19. There are two circles each with radius 5 cm. Tangent AB is 26 cm. The ...

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  20. One of diagonal of a parallelogram is 10 cm and an angle of the parall...

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