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The value of (sin 39^(@))/(cos 51^(@)) +...

The value of `(sin 39^(@))/(cos 51^(@)) + 2 tan 11^(@) tan 31^(@) tan 45^(@) tan 59^(@) tan 79^(@) - 3 (sin^(2) 21 ^(@) + sin^(2) 69^(@))` is

A

2

B

`-1`

C

1

D

0

Text Solution

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The correct Answer is:
D
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ARIHANT SSC-TRIGONOMETRY-Exercise Base Level Questions
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  16. If (sin theta + cos theta)/(sin theta - cos theta) = (5)/(4) , the val...

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  17. The value of (sin 39^(@))/(cos 51^(@)) + 2 tan 11^(@) tan 31^(@) tan 4...

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  18. If (cos^(2) theta)/(cot^(2) theta - cos^(2) theta) = 3 and 0^(@) lt th...

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  19. The numerical value of cot 18^(@) (cot 72^(@) cos^(2) 22^(@) + (1)/...

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