An easy one after a long long time?
y = sin (3x) + cos (2x)
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UP 0 DOWN 0 0 4
4 Answers
24Dom=R
Neither even nor odd
Period=2Ï€
X intercept:
sin3x=-cos2x
=> sin3x=-sin(Ï€2-2x)
=> sin3x=sin(2x-Ï€2)
=> 3x=nπ+(-1)n[2x-π2]
=> x=nπ+(-1)n[2x-π2]3
Y intercept:
sin0+cos0=y
=> y=1
f(x)=sin3x+cos2x
f'(x)=3cos3x-2sin2x
f'(x)=0 => 3cos3x=2sin2x
=> 3sin(Ï€2-3x)=2sin2x
Stuck up here....its becoming lengthy....but trying
24ya its wrong...
btw check the rest of part....
we can get range through max/minima too