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Mazyrski [523]
3 years ago
10

Sin 2A + sin A/1+cos A + cos 2A=tan A

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

= 2sinA.cosA+ sinA / 1+cos2A+ cosA

= sinA(2cosA + 1) / 2cos^2A + cosA

= sinA(2cosA + 1) / cosA( 2cosA + 1)

= sinA / cosA

= tan A

= R.H.S

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If x varies inversely as y, and x=27 when y=6 find x when y=2
kondaur [170]

For this case we have that the inverse variation is defined as:

y = \frac {k} {x}

Where:

k: It is the constant of proportionality

According to the statement we have:

x = 27\\y = 6\\6 = \frac {k} {27}

We find the constant of proportionality:

k = 27 * 6\\k = 162

Then we find the value of x when y = 2:

2 = \frac {162} {x}\\x = \frac {162} {2}\\x = 81

Answer:

x = 81

7 0
4 years ago
Dada a função do 1 grau + (x) = 1 - 5,o valor de f (0)
Serga [27]

×
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7 0
3 years ago
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4 0
3 years ago
Find the midpoint (6,7) And (14,11)
svetlana [45]
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(14,11)...x2 = 14 and y2 = 11
time to sub
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m = (20/2) , (18/2)
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4 0
3 years ago
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Ivan
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