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Write True or False If sinA + sinB = 2, ...

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If sinA + sinB = 2, `(0leAle90^@,0leBle90^@)` then cosecA+cosec B = `2`

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UNITED BOOK HOUSE-VIDYASAGAR VIDYAPITH MIDNAPORE-EXERCISE
  1. Write True or False In a business the ratio of the capital of A and B ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  15. If the lengh of diagonal of a cube is 6 cm then find the total surface...

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  16. The length of radius of a right circular cylinder is decreased by 50% ...

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  17. If ui = (xi-25)/10 sumfiui = 20 and sumfi = 100, find barx.

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  18. At present the sum of the number of students in all the secondary inst...

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  19. Pradipbabu and Aminabiib started a business jointly by investing Rs 24...

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  20. Solve : (x+3)/(x-3)+(x-3)/(x+3)= 2 1/2,x!=+-3.

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