Answer:
-5,-3,0,1 or
-3,-5,0,1
Step-by-step explanation:
Line segments joining these points cross the x-axis 5 times. The continuous function y has
at least 5 zeros.
(csc x-1)(csc x+1)=csc²x-1²=csc²x-1=(1/sin x)² -1=1/sin x² - sin²x/sin²x=
=(1-sin²x)/sin² x = cos² x/ sin² x = (cos x/sin x)²= (cot x)²
Answer:
Please see the attached pictures for full solution.