Math, asked by karan5677saini, 8 months ago

sin20/cos70 evaluate without using trigonometric tables

Answers

Answered by puneetb642

1

Step-by-step explanation:

cos(90-20)/sim20. ( cos (90-Q) = sin)

1

Answered by Emkay31002

0

Answer: 1

Step-by-step explanation:

We know,

cos(90-A)=sinA

Thus,

cos70° = cos(90-20) = sin20°

Now,

sin20/cos70 = sin20/sin20 = 1

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