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Write True or False If 0^@lealphale90^...

Write True or False
If `0^@lealphale90^@`then the minimum value of `(sec^2 alpha+ cos^2 alpha)` is 2.

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UNITED BOOK HOUSE-PATRASAYER BAMIRA GURUDAS INSTITUTION, BANKURA-EXERCISE
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  2. Write True or False If y alpha 1/x then y/x= non zero constant.

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  3. Write True or False If 0^@lealphale90^@then the minimum value of (s...

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  5. Write True or False If the length of radius of a sphere is doubled th...

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  7. What is the rate of simple interest in percent per annum if the total ...

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  8. If sqrt3 sin theta+ cos theta = 2, then theta= ? (0^@lethetale90^@).

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  9. The price of machine decreased by 10% in each year. If the present pri...

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  11. In a partnership business, the ratio of the capitals of three partners...

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  12. If tan 3x.tan 3y = 1, then sin(x+y)=?

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  13. A circle with centre O, a point P is 25 cm away from the centre of th...

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  14. If x= (sqrt5+1)/2, show that x^2-x-1=0.

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  15. If the length of radius of a sphere is increased by 50%, then how much...

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  16. Find the value of overset(10)underset(i=1)sum(10xxi).

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  17. The length of base diameter and height of a right circular cone are 16...

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  20. Solve: 1/x-1/(x+b)=1/a-1/(a+b) (x!=0,-b).

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