find the value of tan 165 degree
Answers
Answered by
2
Answer:
Use trig identity: tan2t=2tant1−tan2t. t2−2√3t−1=0 . Solve this quadratic equation by the formula. Since t = 165 deg, then tan 165 < 0, and the answer (sqrt3 - 2) is accepted.
Step-by-step explanation:
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Answered by
4
Answer:
Step-by-step explanation:
tanChange the
±
to
−
because tangent is negative in the second quadrant.
−
√
1
−
cos
(
330
)
1
+
cos
(
330
)
Simplify
−
√
1
−
cos
(
330
)
1
+
cos
(
330
)
.
Tap for more steps...
−
√
7
−
4
√
3
The result can be shown in multiple forms.
Exact Form:
−
√
7
−
4
√
3
Decimal Form:
−
0.26794919
…
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