3 years ago

Which graph represents the function f(x) = 2 (2)X?

Mathematics

2 answers:

vekshin13 years ago

4 0

Where are the graphs

maksim [4K]3 years ago

4 0

Answer:

C.) Third graph

Step-by-step explanation:

BeCaUsE i KnOw :P

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Let t = cosA + sinA<br> find values of t if <br> 2 - sin2A = 2(cosA + sinA)

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$2 - \sin(2A) = 2(\cos A + \sin A)\\\\2-2\sin A\cos A=2\cos A+2\sin A\\\\2\sin A\cos A+2\cos A+2\sin A-2=0\\\\1+2\sin A\cos A+2\cos A+2\sin A-3=0\\\\\sin^2 A+\cos^2 A+2\sin A\cos A+2\cos A+2\sin A-3=0\\\\(\sin A+\cos A)^2+2\cos A+2\sin A-3=0\\\\(\sin A+\cos A)^2+2(\cos A+\sin A)-3=0\\\\\\t^2+2t-3=0\\\\t^2+2t+1-4=0\\\\(t+1)^2=4\\\\t+1=2\qquad\vee \qquad t+1=-2\\\\\\\boxed{t=1\qquad\vee\qquad t=-3}$