cosA=2/5,find value of 4+4tan²A
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cos=b/h
by pythogores theoram (h)sq.=(p)sq.+(b)sq.
then you can got p
by pythogores theoram (h)sq.=(p)sq.+(b)sq.
then you can got p
Hemraj11:
then u can get ans.25
Answered by
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cosA = 2/5 = b/h
by pythagoras theorem
h^2 = p^2 + b^2
5^2 = p^2 + 2^2
25 = p^2 + 4
p^2 = 21
4+4tan^2A
4+ 4 * 21/4
4+21
25
by pythagoras theorem
h^2 = p^2 + b^2
5^2 = p^2 + 2^2
25 = p^2 + 4
p^2 = 21
4+4tan^2A
4+ 4 * 21/4
4+21
25
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