Which trigonometric function is equivalent to f(x)=sinx ?

f(x)=cos(x-3pi/2)
f(x)=cos(x-pi/2)
f(x)=cos(-x-pi/2) < -- i think this one, not sure
f(x)=cos(x+pi)

 The correct option is (B)

Step-by-step explanation:  We are given to select the correct trigonometric function that is equivalent to the following trigonometric function :

Option (A) :

Here, the given function is

So, this option is incorrect.

Option (B) :

Here, the given function is

So, this option is CORRECT.

Option (C) :

Here, the given function is

So, this option is incorrect.

Option (D) :

Here, the given function is

So, this option is incorrect.

Thus, (B) is the correct option.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

im pretty sure its

(8,15)

step-by-step explanation: