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What is the value of, cot(90-x)sin^4 (90...

What is the value of, `cot(90-x)sin^4 (90-x) + cot(180-x) sin^4 (180-x)`?
`cot(90-x)sin^4 (90-x) + cot(180-x) sin^4 (180-x)` का मान क्या हे?

A

A)`((cos^4 x))/4`

B

B)`((sin^2 2x))/2`

C

C)`((cos^2 2x))/2`

D

D)`((sin 4x))/4`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(13)-EXERCISE
  1. A hollow sphere is melted to form small identical hollow spheres. Inne...

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  2. The selling price of a smartphone is Rs. 9,600 if the discount on it i...

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  3. What is the value of, cot(90-x)sin^4 (90-x) + cot(180-x) sin^4 (180-x)...

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  4. Working alone A can do a work in 72 days and B in 90 days. If they wor...

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  5. If a shopkeeper sells a mixer at Rs 11,400, then he suffers a loss of ...

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  6. A taxi goes from City A to City B at an average speed of 84km/hr. In t...

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  7. If f(x)= (x^2+px+4) and (x-3) is a factor of f(x) the what is the valu...

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  8. A started a trading firm by investing Rs 10 lakhs. After 4 months, B j...

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  9. If y^2 = y + 7, then what is the value of y^3? यदि y^2 = y + 7 है, त...

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  10. A bullet shoots 500 m in 0.2 seconds. What is its speed in km/hr? एक...

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  11. If P =2^29xx3^21xx5^8, Q=2^27xx3^21xx5^8, R=2^26xx3^22xx5^8 and S = 2^...

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  12. ABCDEF is a regular hexagon. What is the ratio of the area of triangle...

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  13. A hollow cylinder of thickness 0.7 cm and height 15cm is made of iron....

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  14. Centre of two concentric circles is O. The area of two circles is 616c...

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  15. PA and PB are two tangents drawn to two cricles of radius 3 cm and 5 c...

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  16. If (1//2^1)+(1//2^2)+(1//2^3).....+(1//2^10)= 1//k, then what is the v...

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  17. If sinx = 1//2 and sin y=2//3, then what is the value of [(6cos^2 x - ...

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  18. Working together A and B can do a job in 36 days, B and C in 10 days a...

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  19. A, B and C together can build a wall in 12 days. C is four times as pr...

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  20. If A = 125 and B=8, then what is the value of (A+B)^3- (A-B)^3- 6B(A^2...

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