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3 years ago

Which is a zero of the function f(x) = 2x - 10?

2 answers:

4 0

Watch carefully:

A 'zero' of the function is a value of 'x' that makes the function zero.

2x - 10 = 0

Add 10 to each side:

2x = 10

Divide each side by 2 :

x = 5

f(5) = 0

LenKa [72]3 years ago

3 0

$f(x)=2x-10\\\\a\ zero\ if\ 2x-10=0\\\\2x=10\ \ \ /:2\\\\x=5\\\\Answer:The\ zero\ is\ x=5.$

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The point (1/3,1/4) lies on the terminal said of an angle. Find the exact value of the six trig functions and explain which func

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Answer:

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cosine and sec are inverse of each other.

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Kindly refer to the attached image for the diagram of the given point.

Let it be point A( $\frac{1}{3},\frac{1}4$ )

Let O be the origin i.e. (0,0)

Point B will be ( $\frac{1}{3},0$ )

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$cos\angle AOB = \dfrac{Base}{Hypotenuse}$

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$tan\angle AOB = \dfrac{Perpendicular}{Base}$

$\Rightarrow tan\angle AOB = \dfrac{3}{4}$

$cosec \angle AOB = \dfrac{Hypotenuse}{Perpendicular}$

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$sec\angle AOB = \dfrac{Hypotenuse}{Base}$

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$\Rightarrow cot\angle AOB = \dfrac{4}{3}$

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