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Establish the identity StartFraction sine

Establish the identity StartFraction sine theta plus sine 7 theta Over sine theta minus sine 7 theta EndFraction equals negative
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Hello, I need help with solving these trig identities. All help is appreciated!1. Establish the Identity: (cos(2x)/1+sin(2x)) =
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2. asked by Kam
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Find zw and StartFraction z Over w EndFraction. Write each answer in polar form and in exponential form. z equals3 left
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Prove this identity using the product-to-sum identity for sine:sin^2 x=1-cos(2x)/2
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2. asked by Kyle
3. 777 views
Which equation is an identity?3(x – 1) = x + 2(x + 1) + 1 x – 4(x + 1) = –3(x + 1) + 1 2x + 3 = 2 x plus 3 equals
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Georgina is told that an angle has a sine of sqrt 5/5 and is in quadrant 2. Use the Pythagorean identity sin^2(0) + cos^2(0) =1,
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Steph is told that an angle has a sine of 1/4 and is in Quadrant II. Use the Pythagorean identity sin^2(θ)+cos^2(θ)=1 , the
1. 1 answer
2. 24 views
Georgina is told that and angle has a sine of √5/5 and is in quadrant II. use the Pythagorean identity sin^2(0) + cos^2(0) =
1. 1 answer
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Prove the identity: cos^4(x)-sin^4(x)=1-2sin^2(x).with explanationim confused on this one cause of the 4th power of the sine.
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2. asked by Anonymous
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Steph is told that an angle has a sine of 1/4 and is in Quadrant II. Use the Pythagorean identity sin^2(θ)+cos^2(θ)=1 , the
1. 1 answer
2. 113 views