Question

If 270°<A<360° and tanA=-24/7 then sin(A/2) =​

Answer 1

Step-by-step explanation:

Sin and tan is negative in 4th quad

therefore ,perpendicular =24

base =7

Hypotenuse (24^2+7^2)^1/2 =25

sinA = perpendicular /hypotenuse

= 24/25

Since in 4 th quad , sin A= -24/25

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Answer 2

▶Question :

If 270°<A<360° and tanA=-24/7

then sin(A/2) =

▶ Solution:

Sin and tan is negative in 4th quad

therefore ,perpendicular =24

base =7

Hypotenuse (24^2+7^2)^1/2 =25

sinA = perpendicular /hypotenuse

= 24/25

Since in 4 th quad , sin A= -24/25

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