Use an addition or subtraction formula to write the expression as a
trigonometric function of one number:
tan 79 ∘ − tan 19 ∘ 1 + tan 79 ∘ tan 19 ∘ = tan A ∘ = B \displaystyle {\frac{{{{\tan{{79}}}^{\circ}-}{\tan{{19}}}^{\circ}}}{{{1}+{{\tan{{79}}}^{\circ}{\tan{{19}}}^{\circ}}}}}={{\tan{{A}}}^{\circ}=}\sqrt{{{B}}} 1 + tan 79 ∘ tan 19 ∘ tan 79 ∘ − tan 19 ∘ = tan A ∘ = B .
A = \displaystyle {A}= A = Preview Question 6 Part 1 of 2 ,
B = \displaystyle {B}= B = Preview Question 6 Part 2 of 2 .
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Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)