Math, asked by fahimfoysal113284, 10 days ago

(cosx)^3 -(cosx)(sinx) -(sinx)^3=1
value of x=?​

Answers

Answered by ishikasahsah
0

Step-by-step explanation:

Solution

sinx3−1+cosx3+1=42

Divide both sides by 22

22sinx3−1+22cosx3+1=2

Multiply both sides by sinxcosx

223−1cosx+223+1sinx=2sinxcosx

⇒sin15∘cosx+cos15∘sinx=sin2x since

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