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Furkat [3]
3 years ago
12

Is it ever possible that sin (A+B)=⁡ (A+B)= sin⁡ A+sin⁡ B?

Mathematics
1 answer:
Cloud [144]3 years ago
3 0

Answer:

  It will always be the case when A and B are opposites

Step-by-step explanation:

sin(x) = -sin(-x) so ...

  sin(A -A) = (A -A) = sin(A) -sin(A) = 0

That is, the given expression is true when B=-A.

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If e=mc2 then what does f equal? <br> just jokes but if you do it i will give brainlyest
Klio2033 [76]

Answer:

I think the F could mean force like F =  ma (mass acceleration)

Step-by-step explanation:

3 0
3 years ago
What is the measure of angle 7?
Ratling [72]

m<1 = m<4 by vertical  angles theorem

3x + 10 = 4x - 15

-1x = -25

x = 25

m<1 + m<7 = 180 if parallel alternate interior angles supplementary

3x + 10 + m<7 = 180

3(25) + 10 + m<7 = 180

75 + m<7 = 180

m<7 = 105°

Hope this helps! ;)

8 0
2 years ago
Which expression can be used to find 3 x 2,354
Ann [662]
D.
Because if you break it down and split the digit place value you can start by doing 3×2000+300+50+4 is going to equal 7062 which is D.
6 0
3 years ago
Two angle of a tranigle measure 55 and 20 what is the measure of the third angle
wariber [46]

Answer:

105 degrees

Step-by-step explanation:

Recall that the sum of angles in a triangle is 180 degrees. As such, where a, b and c are the angles of a triangle then

a + b + c = 180 ( all in degrees)

Given that two angles of a triangle measure 55 and 20, let the size of gthe 3rd be T then

55 + 20 + T = 180

simplify

75 + T = 180

Subtract 75 from both sides

T = 180 - 75

T = 105

7 0
3 years ago
Find the area of a circle whose circumference is 31.4 centimeters. (Pi form) {FREE BRAINLIEST]
vagabundo [1.1K]

Answer:

78.46 cm^2

Use area formula

6 0
3 years ago
Read 2 more answers
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