if Sin A is equals to 5 upon 7 find cos A
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Answered by
0
Answer:
sina =5/7 then base will be root of 24
Step-by-step explanation:
that is 4 root 6 / 7
Answered by
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Step-by-step explanation:
sin^2A+cos^2A=1......by identity
(5/7)^2+cos^2A=1
25/49+ cos^2A=1
cos^2A= 1-25/49
cos^2A=24/49
cosA =√24/7....taking
squreroot of
both side
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