Question

Q15. If sinx = m/n , then tan x?

Answer 1

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We know that √(1–sin²x)=cosx so cos x=√{1–(m/n)²} = √(n²-m²)/n² = √(n²-m²)/√n²=√(n²-m²)/n

so tan x=sinx /coax. =. (m/n)/{√(n²-m²)/n} = m/√(n²-m²)