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Fill in the blanks If x = 2a sec theta...

Fill in the blanks
If `x = 2a sec theta, y = 2b tan theta`, then `x^2/a^2-y^2/b^2`=_______

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UNITED BOOK HOUSE-VIDYASAGAR VIDYAPITH MIDNAPORE-EXERCISE
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  2. Fill in the blanks Conjugate surds of (sqrt5-1) is.

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  3. Fill in the blanks If x = 2a sec theta, y = 2b tan theta, then x^2/a...

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  4. Fill in the blanks Two circles touch each other externally. The com...

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  5. Fill in the blanks The curved surface area of a right circular cone ...

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  6. Fill in the blanks If the mode of the data 12,5,x,10,13,5,13,12,x is...

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  7. Write True or False In a business the ratio of the capital of A and B ...

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  8. Write True or False If 2a = 5b= 8c then a:c = 4:1.

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  9. Write True or False If sinA + sinB = 2, (0leAle90^@,0leBle90^@) then c...

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  10. Write True or False The volume of the largest solid cone that can be c...

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  11. Write True or False If mean of the numbers 7,9,x,12,y,17 is 11 then x...

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  12. In 1 year if the ratio of principal and amount is 8:9 , then calculate...

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  13. What should be added to each of 12,22,42,72 to make the sums proportio...

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  14. In a business , A,B,C invest Rs 500 , Rs 450 and Rs 700 respectively. ...

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  15. If x^2+y^2 alpha xy then show that x+y alpha x-y.

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  16. Length of two chords of a circle with centre at O are 6 cm and 8 cm. I...

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  17. In triangleABC, AB=AC. If we draw a circle with diameter AB, the circl...

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  18. The lengths of radii of two circles are 8 cm and 3 cm and the distance...

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  19. If cos^2 theta-sin^2 theta= 1/2 then cos^4 theta-sin^4 theta=?

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  20. If sec 5 theta= cosec(theta+36^@) and 5 theta is a positive acute angl...

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