40. The value of
tan 35°
tan15°
cot (90°- 35°) 'cot (90 - 159) - 2 tan 45°
is
A) O
B) 35°
C) 90°
D) 1
Answers
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1
Answer:
Step-by-step explanation:
= tan 35° / cot ( 90 - 35 ) + tan 15 / cot(90-15) - 2tan 45
= tan 35 / tan 35 + tan 15 / tan 15 - 2× 1
= 1 + 1 - 2
= 0
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