exam
Maths Puzzle
Numerical Ability
I am trying to work out how to go about finding the eact value of
tan(sin^-1(-4/5)
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exam Other Question
8/5x = 9 , x+4/7=3/5 , evaluate: ab+abc-bc if a=3,b=12 and c=1/6 ,
use two unit multiplyers to convert 74 kilometers to centimeters ,
find k so that the line thru (4,-1) and (k,2)is
a). parallel to 2x+3y=6
b). perpendicular to 5x-2y= -1
pls show work so that i can see where i went wrong
thank in advance