2 years ago

Find the missing angle in a triangle with the given sides.

Mathematics

2 answers:

melamori03 [73]2 years ago

6 0

The angle would be 1°. can i please get brainliest?

d1i1m1o1n [39]2 years ago

5 0

Answer:

Step-by-step explanation:

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Sonja [21]

Answer:

$cos^{-1}(cos\frac{ 7π}{6})=cos^{-1}(cos\frac{7*180}{6})$

$cos^{-1}(cos{210})$

$cos^{-}(cos(180+30))$

[since in third quadrant cos 30=- $\frac{\sqrt{3}}{2}]$

$cos^{-}(- \frac{\sqrt{3}}{2})$

:150°or $\frac{5π}{6}$

150°or  $\frac{5π}{6}$ is a required answer.

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3 years ago

Find the sum of the first 8 terms in the following geometric series.

padilas [110]

Answer: 43690

Step-by-step explanation:

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3 years ago

Complete the ratio table to convert the units of measure from centimeters to inches or inches to

Crazy boy [7]

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3 years ago

cos (x/2) = -sqrt2/2 in (0,360) looking for two values ?? Can someone please help me I can’t seem to figure out how to solve thi

ValentinkaMS [17]

Answer:

135° and 225°

Step-by-step explanation:

basically you want to find the value of x between 0 and 360 in this equation

cos x/2 = -(√2)/2

assume x/2 as n, so

cos n = -(√2)/2

n = 45°

then remember the quadrant system

0-90 1st quadrant, all is POSITIVE

90-180 2nd quadrant, only SIN has positive value

180 - 270 3rd quadrant, only TAN has positive value

270 -360 4th quadrant, only COS positive here.

so if you try to find negative value look into 2nd and 3rd quadrant that related 45° to x-axis (0°or 180°)

so the value of x is

180 - 45 = 135° (2nd quadrant) and

180 + 45° = 225° (3rd quadrant)

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klio [65]

Answer:

it is 10 and 10?

Step-by-step explanation:

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