If cosa =3/5,then find the value of sina-cosa/2tana?
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Answer:
cos a=3/5=b/h
b=3,h=5,p=√(5)²-(3)²=√25-9=√16=4
sin a=p/h=4/5
tan a=p/b=4/3
Then,
sin a - cos a/2tan a
(4/5-3/5)/2×4/3
(4-3/5)/8/3
(1/5)/(8/3)
1×3/5×8
3/40
Step-by-step explanation:
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