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प्रश्न
In ΔABC, if a = 18, b = 24, c = 30 then find the values of tan `A/2`
उत्तर
Given : a = 18, b = 24 and c = 30
∴ 2s = a + b + c
= 18 + 24 + 30
= 72
∴ s = 36
`tan "A"/(2) = (sin "A"/2)/(cos "A"/2)`
= `((1)/sqrt(10))/((3)/sqrt(10)`
= `(1)/(3)`.
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