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Mathematics 11 Online
OpenStudy (anonymous):

math help

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

Hint : \[\large a^2 - b^2 = (a+b)(a-b)\]

ganeshie8 (ganeshie8):

Also notice that \[\large 1 = 1^2\]

ganeshie8 (ganeshie8):

the numerator becomes \[\large \tan^2\alpha -1 = (\tan\alpha)^2 - 1^2\]

ganeshie8 (ganeshie8):

see if you can factor it using the first hint

OpenStudy (anonymous):

c?

ganeshie8 (ganeshie8):

thats right! how did u get c ?

OpenStudy (anonymous):

[tana-1] [tana+1] / [1+tana] which eqauls to C right?

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