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laiz [17]
3 years ago
14

If tanA=1/7 and tanB=1/3 prove that cos2A=sin4B

Mathematics
1 answer:
Tasya [4]3 years ago
3 0

Answer:

{4 |8}. 96. 24

sin4B{3. |9}= ___. = ___ = cos2A

{10|10} 100. 25

{9 |9}

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What is the absolute value of -3
scoray [572]
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it’s just how far away that number is from zero
6 0
3 years ago
Find the measure of the given arc in Circle C.
IRINA_888 [86]

Answer:

AE=90°

AED=140°

DBA=220°

4 0
3 years ago
Can you help me solve this?
antiseptic1488 [7]

The required composite value f(g(-8) is 28

A composite function is a function inside another function. Given the following functions

f(x) = x² - 3x - 12

g(x) = -x - 12

Required composite function is f(g(-8))

First we need to get f(g(x))

f(g(x)) = f(-x-12)

f(-x-12) =  (-x-12)² - 3x - 12

Expand

f(-x-12) = x² +24x + 144 - 3x - 12

f(-x-12) = x² +21x + 132

f(g(x)) = x² +21x + 132

Substitute x = -8 into the result

f(g(-8)) = (-8)² +21(-8) + 132

f(g(-8)) = 64 - 168 + 132

f(g(-8)) = 28

Hence the required composite value f(g(-8) is 28

Learn more here : brainly.com/question/3256461

8 0
2 years ago
Need help ASAP. Please answer quick
PolarNik [594]

Answer:

Energy used, input

Monthly bill, output

Step-by-step explanation:

the bill is affected by how much energy u use

HOPE THIS HELPS!

Brainliest?

8 0
2 years ago
What does it mean if the x-coordinate in an ordered pair is zero? What if the y-coordinate is zero? Both? Explain.
Harman [31]
If the x-axis ordered pair is (0,0) and the y-axis ordered pair is (0,0), it is just where the lines intersect or also known as the origin. Both x and y can have a (0) in it.

for example let's say that you have an ordered pair on the X-axis of (5,0) and a ordered pair on the y-axis of (-3,0) it would look like that^^

or if it was just (0,0) it would be a dot in the middle


Don't know if it helped much, but there ya go

5 0
3 years ago
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