If cosA=2/5,find the value of 4+4tan2A
tnwramit1:
is it tan2A or tan²A
tan²A
then my ans is not right
because I solved it by take tan2A
u can check it now i didn't with both
Ok
Tq
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Answered by
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This is ur ans hope it will help you
If it is tan²A
Then
Follow the Similarly step up to tan values
Than do square of tan value
We have tanA= root21/2
After square we have
Tan²A=21/4
Putting it in 4+4tan²A, we get
4+4x21/4
4+21=25
If it is tan²A
Then
Follow the Similarly step up to tan values
Than do square of tan value
We have tanA= root21/2
After square we have
Tan²A=21/4
Putting it in 4+4tan²A, we get
4+4x21/4
4+21=25
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tnx for brainliest
Wlcm
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