Question

MEDAL!! True or False: The graph of y = sin x is increasing on the interval pi/2 , 3pi/2 . Explain
your answer

Answer 1

@ganeshie8

Answer 2

find the derivative

Answer 3

if the derivative is POSITIVE in given interval,
then the function is INCREASING

Answer 4

y = sin(x)
dy/dx = ?

Answer 5

familiar with derivatives ha ?

Answer 6

Is this question related to Calculus ?

Answer 7

so it is true then

Answer 8

its pre-calc

Answer 9

it is False actually

Answer 10

how would I explain that one lol

Answer 11

Oh ok I see that

Answer 12

you might explain it like below :
the graph of y = sin(x) has a highest value of 1 at x = pi/2 and it is continually decreasing upto x = 3pi/2; thus the function y = sin(x) is decreasing in the interval (pi/2, 3pi/2)

Answer 13

Thanks! I just have 1 left on my study guide

Answer 14

so the given statement is FALSE<
the graph is NOT INCREASING,

Answer 15

good luck !