evaluate the following 1) 6 sin20-8 sin cube 20
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Answer:
Heya,
The question would be easy if we will use the approach of multiple and submultiples.
we know,
.........(i)
Now,
expression 6 sin20° - 8sin³20° can be written as 2(3sin20° - 4sin³20°).
=> 2(sin3 × 20°) ..........using (i)
=> 2 × sin60°
Rea
Answer:
Refer to the attachment mate