When is an equation called an identity? Prove that 1 + tan^2A = sec^2A. Answer this one quick for brainiest answer
MRKN0WITALL:
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An equation is called an identity when it is satisfied/true for any value of the variable in the equation.
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Bro I gotta a doubt
what?
Can't we solve LHS = RHS
U know using tan = sin / cos
I done the same yes we can do that I just want to tell easy way
Ok
heya bros did u understand that??
Answered by
1
HEY MATE,
1 + TAN^2 A = SEC^2 A
TAN^2 A = SIN^2A/COS^2A
SEC^2 A = 1/COS^2 A
1 + SIN^2 A/COS^2 A = 1/COS^2 A
COS^2 A + SIN^2 A/COS^2 A = 1/COS^2 A
WHEN WE DIVIDE IT SEPARATELY,
COS^2 A/ COS^2 A + SIN^2 A/COS^2 A = 1/COS^2 A
1 + TAN^2 A = SEC^2 A.
HENCE PROVE.
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
1 + TAN^2 A = SEC^2 A
TAN^2 A = SIN^2A/COS^2A
SEC^2 A = 1/COS^2 A
1 + SIN^2 A/COS^2 A = 1/COS^2 A
COS^2 A + SIN^2 A/COS^2 A = 1/COS^2 A
WHEN WE DIVIDE IT SEPARATELY,
COS^2 A/ COS^2 A + SIN^2 A/COS^2 A = 1/COS^2 A
1 + TAN^2 A = SEC^2 A.
HENCE PROVE.
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
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pls mark as BRAINLIEST
hey mate Is I done something wrong?
Nah brother
His is simpler to understand i guess
Nothing wrong on ur side
that's why I search both answer for you in Image
Tnx a lot brother
well if you done the way in Image I think you got full marks for question
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