Question

The value of tan55°/cot35°+ cot1° cot 2° cot 3°.... cot 90°, is
A. - 2
B. 2
C. 1
D. 0

Answer 1

C. 1

Step-by-step explanation:

We know that Tan A = Cot (90-A), also Cot90°= 0

Tan 55°/ Cot 35° + Cot1°.Cot2°.Cot3°....Cot90° = Cot (90-55)°/Cot 35° +Cot1°.Cot2°.Cot3°....Cot90°

= Cot 35°/Cot 35° + Cot1°.Cot2°.Cot3°....Cot90°

= 1 + any value*(0)

= 1 + 0

= 1  

Option C is the answer.

Answer 2

Answer:

Ans is 0

Step-by-step explanation:

cot 35/cot 35 + cot 1 x cot 89 x cot 2 x cot 88 ... cot 43 x cot 47 x cot 44 x cot 46 x cot 45 x cot 90

1 + 1 x cot 45 x cot 90

2 x 1 x 0

( Anything into 0 is 0 )

Therefore,

ans is 0