Question

y=sin²x-20cosx+1 find maximum and value of this expression.​

Answer 1

Answer:

2

Step-by-step explanation:

max value of sin and cos function ranges between 1 and -1

so put x = 90°

sin function will become 1

cos (90)= 0

so expression becomes 1 -20(0)+1

=1+1

= 2