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If (1 + tan theta) (1+ tan phi) = 2, the...

If `(1 + tan theta) (1+ tan phi) = 2,` then `theta + phi =`

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

Text Solution

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 8-MATHEMATICS
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  5. int(sqrt(tanx))/(sin x cos x)dx is equal to

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  13. In the group G = { 1, 2, 3, 4, 5 } under addition modulo 6, (3 + 5^(-1...

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  14. If (G, ^(**)) is a group such that a ^(**)b=b^**a for two element a an...

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  16. If sin A = sin B, cos A = cos B, then the value of A in terms of B is

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  17. If (1 + tan theta) (1+ tan phi) = 2, then theta + phi =

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  18. tan^(-1)((x)/(y))-tan^(-1)((x-y)/(x+y)) is

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  19. cot[cos^(-1)((7)/(25))]=

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