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2 years ago

PLZ HELP ITS DUE TODAY!!!! EXPLAIN UR ANSWER!!!!

Mathematics

1 answer:

pychu [463]2 years ago

5 0

Answer:

Answer: -4 > x > 3 or x < -4 and x > 3

Step-by-step explanation:

» On the negative side,

${ \tt{ \hookrightarrow \: x < - 4}}$

» On the positive side,

${ \tt{ \hookrightarrow \: x > 3}}$

» Overall inequality,

${ \tt{x < - 4 \: \: or \: \: x > 3}} \\ \\ { \boxed{ \tt{ \: 3 < x < - 4}}} \\ { \rm{or : }} \\ { \boxed{ \tt{ \: - 4 > x > 3}}}$

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3 years ago

What is the period for the function y = -4 cos (5x +3)? (4.3)

BlackZzzverrR [31]

The periodicity of function is $\frac{2 \pi}{5}$

Solution:

Given that we have to find the period of function

Given function is:

$y = -4 + cos(5x+3)$

Use the below formula:

$\mathrm{Periodicity\:of\:}a\cdot \cos \left(bx\:+\:c\right)\:+\:d=\frac{\mathrm{periodicity\:of}\:\cos \left(x\right)}{|b|}$

Thus,

$Peridocity\ of\ cos(5x + 3) - 4 = \frac{\text{periodicity of cos(x)}}{5}$

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We know that,

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