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Mathematics
24.09.2021 08:14
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Raise 9 to the 2nd power,then add the result to a

Raise 9 to the 2nd power,then add the result to a
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fedora87
fedora87
5,0(4 marks)

81

Step-by-step explanation:

9 to the 2nd power is 81

jazminpratt0311
jazminpratt0311
4,6(62 marks)

81 + a

Step-by-step explanation:

9 to the second power is 9 squared and add that to the variable 'a' you get that number plus a. So, the answer is 81+a

afifakiran5226
afifakiran5226
4,8(5 marks)

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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