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The arithmetic mean of the numbers 2s in...

The arithmetic mean of the numbers `2s in2^0,4sin4^0,6sin^0, ddot, 178s in 178^0,180sin180^0` is `sin1^0` b. `"tan"1^0` c. `cot1^0` d. `t a n 89^0`

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  2. If y=x+e^x , find (d^2x)/(dy^2) .

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