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The value of cos10^(@)-sin 10^(@) is...

The value of `cos10^(@)-sin 10^(@)` is

A

positive

B

negative

C

0

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-TRIGNOMETRIC RATIOS & IDENTITIES -Exercise 1
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  3. The value of cos10^(@)-sin 10^(@) is

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  4. If 0 lt x lt pi and cos x + sin x = 1/2, then tan x is

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  5. If A lies in the third quadrant and 3 tan A-4 = 0, then 5 sin 2A + 3si...

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  8. Prove that cos 36^(@) cos 72^(@) cos 108^(@) cos 144^(@)=1//16.

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  9. The value oif the expressin (1+cospi/10)(1+cos(3pi)/10)(1+cos(7pi)/10)...

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  10. (cos 20^(@)+8 sin 70^(@) sin 50^(@) sin 10^(@))/( sin^(2)80^(@)) is eq...

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  12. Find the value of x for which f(x)=sqrt(sinx-cosx) is defined, x in [0...

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  13. Find the number of solutions of sinx=x/(10)

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