Answer: i would help but i have no idea but i think its (a)
Step-by-step explanation:
add the a´s first then the b´s
Given data
<span>sin (x+pi/2)=cos x
</span>now using sin law
sin(a+b)=sin(a)cos(b)+cos(a)sin(b)
now using above values
sin(pi/2+x)=sin(pi/2)cos(x)+cos(pi/2)sin(x)
as we know that
sin(pi/2)=1
cos(pi/2)=0
now putting these values
sin(pi/2+x)=1*cosx+0*1
sin(pi/2+x)=cosx
hence proved that
<span>sin (x+pi/2)=cos x</span>
Solution
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given data
STEP 2: Find the mean
mean is 87.33
STEP 3: Find the median
Answer:
Step-by-step explanation:
