Question

Is the value of the expression (cos80° – sim 80°) is negative?

Answer 1

The value of (sin 80 - cos80) will be positive. The value of sin80 will be very close to that of sin90 (which is 1) and similarly, the value of cos80 will be very close to that of cos90 (which is zero). Clearly, the result will be positive decimal number and should be fairly close to 0.8.

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