9. If tan 0 = cot(30° + ), then 0 =-
(a) 45°
(b) 30°
Answers
Answered by
1
b.30
As tan30 = cot(30+30)=cot(60)=1/3^-2
As tan30 = cot(30+30)=cot(60)=1/3^-2
Answered by
8
Answer:
option (b)
(b) 30°
Step-by-step explanation:
tan theta = tan(90 (30 + theta)
tan theta =tan(90 - 30 - theta)
theta = tan 60 - theta
theta + theta = 60
theta = 60/2
theta = 30.
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