The Third of Seven Problems - A Problem For Kids Aged 7 Years and 3 Months.

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If you are 7 yrs and 2 months this problem will be a challenge lolololololol.ok.Find the value of a+b if a/b = 69 ( sin ( x ) ) + 21 ( cos ( x ) ) 69(\sin(x))+21(\cos(x)) divided by its conjugate if tan ( x ) = 6 \tan(x)= 6 .

This is a no calculator question.If you use one I will put you on yellow muhuhauahahhahah.


The answer is 828.

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1 solution

Aaryan Vaishya
Oct 4, 2019

Divide both the numerator and the denominator by cos x and you have an expression solely in terms of tan and integers which is just the same as integers.6x69x2(there is +/- cancel in sum) = 828.

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