Im doing the (b) part of the exercise, which ask about what do they approach as X approaches Xo (their limits)
3)m(=sin((X-Xo)/2)/((X-Xo)/2) * cos ((X+Xo)/2)
Note: Xo an X are points on the cos,sin curve which is not bigger than pi/2
I was able to...
oohhh, i found the formula in my exercise book, it was really that standard
thank you for your help, now I am doing the (b) part of the exercise about their limits
May I ask for your help if i get stuck?
Proving slope "m" of a secant connecting two points of the sine curve
Write and expression for the slope m of the secant connecting the points Po(Xo,Yo) and P(X,Y) of the sine curve. Use the appropriate trigonometric identity to show that m= sin((X-Xo)/2)/((X-Xo)/2) * cos...
for 3) of course i drew a picture, i could only get as far as the slope+tower all together is 25.37m, maybe i misdrew the picture or just couldn't continue from the answer (25.37) i got
and 2) i used your hint and calculated out the height/distance ration, i tried to substitue it into the sin...
We've been learning cos/sin rule since the 1st of school, and i really had difficulties with the following exercises, I've been working them yesterday for 2-3 hours and could only manage to do part of it...
1. IN Quadrilateral ABCD, AB=7 cm, BC= 8cm, CD=5cm and angle ABC=52...