my question is (in red circle) :
#befor the step have equation are missing what is the missing step?
My Question Is In Red Circle Befor The Step Have Equation Are Missing What Is The Missing Step 1 (25.4 KiB) Viewed 26 times
My Question Is In Red Circle Befor The Step Have Equation Are Missing What Is The Missing Step 2 (25.4 KiB) Viewed 26 times
DAMPING RATIO AND UNDAMPED NATURAL FREQUENCY USING FORMULAE which we can write as z=r200, (7.11) where r = 2-T or T = - Inr (7.12) and 8 = TVI-32 (7.13) From (7.12) and (7.13) we obtain - Inr ni or - Inr Vilnr)? + (7.14) and from (7.12) and (7.14) we obtain 00 (Inr)2 + 02. (7.15)
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