Evaluate the following: (3 cos 55°/7 sin 35°)-4(cos 70 cosec 20°)/7 (tan 5° tan 25° tan 45° tan 65° tan 85°)

+1 vote
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asked Feb 16, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 936
Evaluate the following:

(3 cos 55°/7 sin 35°)-4(cos 70 cosec 20°)/7 (tan 5° tan 25° tan 45° tan 65° tan 85°)

1 Answer

+1 vote
answered Feb 16, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 16, 2018 by sforrest072
 
Best answer

The correct answer is

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