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weqwewe [10]
3 years ago
7

Given f(x) =5x+3, find f(-2)

Mathematics
1 answer:
Bess [88]3 years ago
3 0
Answer is : -7
Reason: 5(-2)=-10
-10+3=-7
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Please only legit answers! and no links!
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Hello : 
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8 0
4 years ago
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\text{Consider the function}\\&#10;\\&#10;y=6\tan(x/2)-3\\&#10;\\&#10;\text{to find the x-intercepts of the graph of the function, we put y=0.}\\&#10;\text{so we get}\\&#10;\\&#10;6\tan(x/2)-3=0\\&#10;\\&#10;\Rightarrow 6\tan(x/2)=3\\&#10;\\&#10;\Rightarrow \tan(x/2)=\frac{3}{6}\\&#10;\\&#10;\Rightarrow \tan(x/2)=\frac{1}{2}\\&#10;\\&#10;\Rightarrow \frac{x}{2}=\tan^{-1}\left (\frac{1}{2}  \right )

\Rightarrow \frac{x}{2}\approx 0.4636\\&#10;\\&#10;\text{the period of tangent is }\pi, \text{ so we have}\\&#10;\\&#10;\Rightarrow \frac{x}{2}\approx 0.4636+n\pi\\&#10;\\&#10;\Rightarrow x=2( 0.4636+n\pi)\\  \\&#10;\Rightarrow x=0.9273+2n\pi\\&#10;\\&#10;\text{Hence the x-itnercepts of the function are: }(0.9273+2n\pi,\ 0)

7 0
3 years ago
Read 2 more answers
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