If cos A =2/5 ,find 4+4tan^2A.
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cosA = b/h
so,b= 2
h= 5
p = ✓h^2-b^2
= ✓5^2-2^2
= ✓25-4
= ✓21
then,tanA = p/b = ✓21/2
4+4tan^2A
= 4+4(✓21/2)^2
= 4+4×21/4
= 4+21
= 25
so,b= 2
h= 5
p = ✓h^2-b^2
= ✓5^2-2^2
= ✓25-4
= ✓21
then,tanA = p/b = ✓21/2
4+4tan^2A
= 4+4(✓21/2)^2
= 4+4×21/4
= 4+21
= 25
jazzy3:
as per solve addition
first then multiply it
no you know BODMAS
as per bodmas only
first multiplication then addition
no search on google first addition and then multiplication u can search it on google
hey i searched this question on Google,its correct
you can also search in brainly in ask your question option
there are so many questions like this in brainly
25 is the answer
Answered by
1
may it will help u
thnk u
thnk u
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what is your final answer!! i am not able to see it
its 42
Yess i too got the answer 42
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