The value of the expression
Question:

The value of the expression (sin 80° – cos 80°) is negative.

Solution:

False

We know that, sine is increasing when, O°<θ<9O° and cosθ is decreasing when,

O°<θ<9O°.

∴                                               sin80°-cos80°> 0                                                      [positive]

Administrator

Leave a comment

Please enter comment.
Please enter your name.