Question

maths challenge!!!
let's see who's answer is detailed and correct and fastly answered.

and u will be marked the brainliest.
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Answer 1

Answer: 1) 3/4 sin 4θ

Step-by-step explanation:

sin3θcos³θ+cos3θsin³θ =
(3sinθ - 4sin³θ)cos³θ + (4cos³θ - 3cosθ)sin³θ
= 3sinθcos³θ - 4sin³θcos³θ + 4cos³θsin³θ - 3cosθsin³θ

= 3sinθcosθ ( cos²θ-sin²θ )
= 3/2 sin2θcos2θ
= 3/4 sin 4θ

hope it helped :)