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If sin theta = cos theta, then the value...

If `sin theta = cos theta`, then the value of `2theta` will be_____

A

`30^@`

B

`60^@`

C

`45^@`

D

`90^@`.

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UNITED BOOK HOUSE-QUESTION PAPER 2017-Exercise
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  2. The number of common tangents of two circle when they do not touch or ...

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  3. If sin theta = cos theta, then the value of 2theta will be

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  4. If each of radius of the base and height of a cone be doubled, then th...

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  7. If in a quadratic equation ax^2 + bx + c = 0 (a le 0) b^2 = 4ac, then ...

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  8. If the length of the sides of two triangles are in proportion, then tw...

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  9. If cos@ theta - sin^2 theta = 1/x, (x > 1), then cos^4 theta - sin^4 t...

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  10. The numbers of plane surface of a solid hemisphere are

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  12. Write True or False (any five) : A starts a business with ₨. 10,000 a...

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  13. If x = 2+sqrt3, the value of x+1/x is sqrt2.

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  14. If two circles of radii 7 cm and 3 cm touch each other extermally, the...

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  15. If 0^@ < theta < 90^@, then sin theta > sin^2 theta.

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  16. If the total sueface area of a hemishere be 36Pi sq. cm, them its radi...

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