Mathematics: combine like terms b^2 + 3 + 2b^2 + 4 - 7

Solution given:is your answer....

combine like terms b^2 + 3 + 2b^2 + 4 - 7 - id2322473150994, zykia1002

22swittman

06.01.2022

2b^2 and b^2 can be combined into 3b^2
3, 4 and -7 can be combined into 0

So after combining the equation would be 3b^2

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fatboi82

26.08.2020

Solution given:

$\frac{1 + \sin( \alpha ) }{1 - \sin( \alpha ) } - \frac{1 - \sin( \alpha ) }{1 + \sin( \alpha ) }$

$\frac{(1 + \sin( \alpha )) {}^{2} - (1 - \sin( \alpha ) {}^{2} }{1 - \sin{}^{2} \alpha }$

$\frac{1 + 2 \sin( \alpha ) + \sin {}^{2} ( \alpha ) - 1 + 2 \sin( \alpha ) - \sin {}^{2} ( \alpha ) }{ { \cos }^{2} \alpha }$

$\frac{4 \sin( \alpha ) }{ \cos {}^{2}( \alpha ) }$

$4 \tan( \alpha ) \sec( \alpha )$

is your answer.

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