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3 years ago

Is sinx cosx ever equal to 1?

1 answer:

Taya2010 [7]3 years ago

7 0

From Pythagorean Identities sin^2x+cos^2x=1
and from that identities we can have sinx+cosx=1, taking sinx=1−cosx and substitute in the equation
sinx+cosx=1
(1−cosx)+cosx=1
Remove the parenthesis
1−cosx+cosx=1
cancel cosx
1=1

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$\text{Hello There!}$

$\text{We are going to need to isolate the variable}$

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