Question

If 180<A<270 and sin A=-3/5 find cos A/2
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Answer 1

Answer:

10/-3

Step-by-step explanation:

cosA/2=1/sinA/2

2/sinA=2/-3/5

10/-3

Answer 2

Answer:

$\frac{\cancel 2\times 3}{3}×{\cancel 2} </p><p></p><p> \\</p><p> </p><p>\sqrt{46}+\sqrt{4}+\sqrt25</p><p></p><p>$