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1 year ago

If f(x) = x³ +7x²-x and g(x)=x²-3, What is the degree of g(f(x))? a)2 b)3 c)6 d)8

Mathematics

2 answers:

andrezito [222]1 year ago

5 0

Answer:

Step-by-step explanation:

Given :

⇒ f(x) = x³ + 7x² - x

⇒ g(x) = x² - 3

===============================================================

Finding the degree of g(f(x)) :

⇒ Degree of f(x) = 3

⇒ Degree of g(x) = 2

⇒ Therefore, degree of g(f(x)) = degree of f(x) × degree of g(x)

⇒ Degree of g(f(x)) = 3 × 2

⇒ Degree of g(f(x)) = <u>6</u>

MrMuchimi1 year ago

5 0

g(f(x))
g(x³+7x²-x)
(x³+7x²-x)²-3

Degree of g(f(x))

Use Pascal's law

3×2
6

Option C

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Karen, this type of question is such a tricky question, there is a lot of things that you just have to remember for these. Also, this type of question is asked a lot on brainly, you are in good company :P This also makes me wonder if math teachers are just REALLY BAD at teaching this.. hmmm Something is up with this type of problem b/c I have answer 100s of these type on here.. they are tricky. soooo...

Step-by-step explanation:

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Use SOH CAH TOA to recall how the trig functions fit on a triangle

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with the above info, we can solve your triangle :P not meant to sound "wrong" .. anyway

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SOH CAH TOA is super helpful for this kind of triangle problem :)

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