19this is a real lollipop [3]
use sin θ = sin(∩-θ)...and then get the answer as cot 1°
The value of --
\frac{2Sin(2) + 4Sin(4) + 6Sin(6) +...+ 180Sin(180)}{90} = \ ?
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3 Answers
19
13Yeh, thts the click!
Wasn't a doubt actually; but i posted it here fr others to try; ('coz i had been rummaging around with extravagant stuff, b4 realising the simplicity.....!) [6]
