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Write True or False : If x = 3cos thet...

Write True or False :
If `x = 3cos theta` and `y = 3 sin theta` then `x^2+y^2 = 1`.

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UNITED BOOK HOUSE-GHORANASH HIGH SCHOOL -EXERCISE
  1. Only one circle can be drawn through three non-colinear points.

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  2. Write True or False : If the volume and the base area of solid right...

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  3. Write True or False : If x = 3cos theta and y = 3 sin theta then x^2...

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  4. Write True or False : Median of 4,6,4,5,7,8,5,9,5,7 is 4.

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  5. Total amount (principal+compound interest) in 2 years of Rs 400 is Rs ...

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  6. In a business A and B get ₹ 1,050 as profit. If the principal and prof...

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  7. If the roots of equation 5x^2-3x+6=0 are alpha and beta then find the ...

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  8. If (a+b):sqrt(ab) = 2:1 find a:b.

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  9. The length of diameter in a circle is 10 cm. If the distance from cent...

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  10. In a cyclic quadrilateral ABCD, find the value of tanA/2tan B/2 tan C/...

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  11. The line parallel to BC of triangleABC meets AB and AC at P and Q resp...

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  12. If r cos theta = 1/2 and r sin theta = sqrt3/2, then find the value o...

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  13. If tan theta+ cot theta = 2, then find the value of tan^5 theta+cot^5 ...

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  14. The length of diagonal of a cube is 4 sqrt3cm. Find its total surface ...

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  15. The curved surface area of a right circular cone is sqrt(10) times of ...

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  16. If ui = (xi - 35)/(10), sumfiui =30 and sumfi = 60, then determine the...

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  17. At the same rate of simple interest in percent per annum, if a princip...

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  18. The price of any machine decreased by 10% in each year. If the price o...

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  19. Answer any one : 1/a+b+x = 1/a+1/b+1/x, [x ne 0, - (a + b)]

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  20. The area and perimeter of a rectangular park are 600 sq.m. and 100 m r...

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