Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$${ \left(COS \right) }^{ 2 } - { \left(TAN \right) }^{ 2 }$$

Answer

$$COS^2-TAN^2$$

Solution


Remove parentheses.
\[{COS}^{2}-{TAN}^{2}\]
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