Mathematics, 21.03.2021 04:30 emo239

Read the proof What is the missing step and reason?
Step
tan(x) +tan(x)
: tangent double angle identity
1-tan(x) tan(x)
Reason
tan(x) + tan(x)
1-tan(x) tan(x)
tangent sum identity
tan(2x) = tan(x+x)
Addition
tan(x) + tan(x)
: tangent double angle identity
1+tan(x) tan(x)
?
?
=
tan(x) +tan(x)
1+tan(x) tan(x) : tangent sum identity
2(x)
1 -tan-(x)
Simplify

Answers: 2

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Read the proof What is the missing step and reason?
Step
tan(x) +tan(x)
: tangent...