Question

Hitunglah nila dari sin 47.cos13.+cos47.sin13

Answer 1

$\textbf{- Answer -}$

Now,

sin47° cos13° + cos47° sin13°

= sin (47° + 13°)

= sin60°

= (√3)/2

RULE :

sin (A + B) = sinA cosB + cosA sinB

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