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in Mathematics by (52.5k points)

If (2sinα)/(1 + cos2α) = 1/7 and ((1 - cos2β)/2) = 1/10, α, β ∈ (0, π/2), then tan(α + 2β) is equal to _____.

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tan2β = 2/3.9/8 = 3/4

= tan(α + 2β)

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by (54.8k points)

2sinα/2cosα = 1/7 ⇒ tanα = 1/7

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