Answer:
Step-by-step explanation:
Since π=3.14 and 1.75 should be half of π so cos(1.75) should be in the approximation of [tex]\frac{\sqrt{2}}{2}[/tex] or [tex]0.7[/tex].
Clearly Sam's calculator is in the degree mode since [tex]cos(1.75^{\circ})[/tex]
is about [tex].999[/tex] and obviously, [tex]\frac{{\pi}}{2}<1.75<{\pi}[/tex], So on the unit circle, it will be in the second quadrant.
Thus, cos(1.75) is negative.
