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Solve 2cos^(2)x+3 sin x=0...

Solve `2cos^(2)x+3 sin x=0`

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OSWAAL PUBLICATION-SAMPLE PAPER 1-EXERCISE
  1. One card is drawn from a well-shuffled deck of 52 cards.Calculate the ...

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  2. Let A={1,2,3....14}. Define a relation R from A to A by R={(x,y) : 3x-...

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  3. Solve 2cos^(2)x+3 sin x=0

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  4. Express sqrt3+i in polar form ?

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  5. Solve: 3x^(2) - 4x + 20/3=0

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  6. How many numbers greater than 10,00,000 can be formed by using the dig...

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  7. Using Binomial Theorem, indicate which number is larger (1.1)^10000 or...

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  8. In an A.P if m^(th) term is n and n^(th) term is m, where mnen, find t...

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  9. Find the sum to n terms of the A.P., whose k^("th") term is 5k + 1.

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  10. Find the co-ordinates of the foci and latus rectum of the hyperbola3x^...

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  11. Differentiate of sin x w.r.t. x from first principles

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  12. Given p : 25 is multiple of 5 q : 25 is a multiple of 8 Write the ...

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  13. Two students Anil and Ashima appeared in an examination . The probabi...

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  14. A letter is chosen at random from the word "ASSASSINATION" . Find the ...

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  15. A letter is chosen at random from the word 'ASSASSINATION' Find the pr...

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  16. In a survey of 600 students in a school, 150 students were found to be...

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  17. If the function from f:R rarr R is defined as f(x)=x^2,then draw the g...

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  18. Prove that : (sin 5x-2sin3x+sinx)/(cos5x-cosx)=tanx

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  19. Prove by mathematical induction 1+2+3+……+n(n(n+1))/(2).

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  20. Solve graphically 2x+y ge 4, x+y le 3, 2x-3y le 6 x ge 0, y ge 0

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