Here are two column vectors
f=(4/1) g=(5/3)
Work out
a) 2f
b) f+ g =
c) 2f-g=​

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

the photograph is photographer and- in the process- ourselves.

step-by-step explanation:

y=sec x is the correct answer

~batmans wife dun dun