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Consider the following statements I. The...

Consider the following statements I. The value of `cos 46^@ -sin 46^@` is positive.II. The value of `cos 44^@-sin 44^@` is negative.Which of the above statement(s) is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Text Solution

Verified by Experts

The correct Answer is:
D
Since `costhetagtsintheta , "in"[0,(pi)/(4)]`
and `costhetaltsintheta,"in"[(pi)/(4),(pi)/(2)]`
`thereforecos46^(@)-sin46^(@)=-`ve
and `cos44^(@)-sin44^(@)=+` ve
So , both the above statements are incorrect .
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NDA PREVIOUS YEARS-TRIGONOMETRY - RATIO & IDENTITY , TRIGONOMETRIC EQUATIONS-MCQ
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