### Revision work

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Showing posts from September, 2020Show All

mskhanal
September 28, 2020

If tan x + Tany = 2 and 2 Cos x cos y = 1 find the value of x and y If tan x + cot y = 2 and 2 Cos x don't = 1/√2 find the value of x - y

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mskhanal
September 28, 2020

Solve the given equation Sin A + Sin 2A + Sin 3A = 0 Cos 3A + Cos A = 2 Cos A TanA + Tan 3A + √ 3. Tan A Tan 3A = √3 Sin A + Sin 5A = Sin 3A

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mskhanal
September 22, 2020

Sinθ = cos 2θ Tan 2θ- cot θ= 0 Sin3θ = cos 7θ Sin θ = cos θ Cosec 3θ= sec 2 θ

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mskhanal
September 22, 2020

Cosθ= 1/2 Sinθ= 1/2 4Sin²θ - 3 = 0 3tan²θ=1 ✓2 sec θ -2 = 0 Cosec θ = 2 3 sec ² θ - 4 = 0 Cosec² θ - 2 = 0 3 cot ² θ - 1 = 0

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mskhanal
September 18, 2020

2PA = 4PB PA^2 + PB^2 = AB^2

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mskhanal
September 16, 2020

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mskhanal
September 12, 2020

Prove that Cos2A + Cos2B + Cos 2C = -1 - 4CosA CosB CosC Sin2A + Sin2B + Sin2c = 4 sinA sinB sin C

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