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Llana [10]
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.
Mathematics
1 answer:
elena-s [515]3 years ago
5 0
Count by tens and ones.
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zhenek [66]

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True

EXPLANATION

The given trigonometric equation is:

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

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

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

Collect LCM on the right hand side to get;

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

This implies that

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This identity has been verified .Therefore the correct answer is true.

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