if 5A=90°, evaluate sec3ASin2A
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Answered by
1
Answer:
A = 90/5 = 18° (sec 54° sin 36°)
= 4.79 = 5
Answered by
0
Answer:
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Step-by-step explanation:
5A=90
A=18
now, sec3(18)sin2(18)
sec54sin36
sec(90-36)sin36
cosec36sin36 (cosec36=1/sin36)
1/sin36×sin36
=1
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