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sin10 5^(@)+cos10 5^(@)=...

`sin10 5^(@)+cos10 5^(@)=`

A

`sin15^@`

B

`cos30^@`

C

`sin45^@`

D

`cos60^@`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

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  • (cos10^(@)+sin110^(@))/(cos10^(@)-sin10^(@)) is equal to

    A
    `tan55^(@)`
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    `cot55^(@)`
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    `-tan35^(@)`
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    `-cot35^(@)`

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