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3 years ago

8

Which method do you prefer to use to find sums- count by tens and ones, use compatible numbers, or use friendly numbers and adju

st? Explain why.

1 answer:

elena-s [515]3 years ago

5 0

Count by tens and ones.

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EXPLANATION

The given trigonometric equation is:

${ \tan}^{2} x + 1 = { \sec}^{2} x$

We take the LHS and simplify to arrive at the RHS.

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Collect LCM on the right hand side to get;

${ \tan}^{2} x + 1 = \frac{{ \sin}^{2} x + {\cos}^{2} x}{{ \cos}^{2} x}$

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