Recent content by mrtkawa

oh i forgot tell you that my ass hole teacher want to us to do the proof by solving either side so i can not divide, square, multiply or anything to the both side or the one side

i tried everything but it does not work at all!

hey you, i got this cosX(secX+cosXcsc^2X)=csc^2x just solve the left side cosX[(1/cosX)+(cosx/sin^2X)]=csc^2X then multiply ,so... cosX(1/cosX)+cosX(cosX/sin^2X)=csc^2X 1+cot^2X=csc^2X since 1+cot^2X one of the trig identity which equals to csc^2X, problem solved

i need help for these 2 trig proofs, i did everything i could but it's impossible. 1st question; (cot^2X)-1=csc^2X and 2nd question; (cot^2X)-(cos^2X)=cos^2Xcot^2X caution, both might be insoluable thanks!

thanks i got it

thanks i got it

also this formuls might be handy V1=(m+M)/mv'=(m+M)/√２ｇｈ ｇ＝gravity

i need a help on this problem a 20g rifle bullet traveling 250m/s buries itself in a 3.8kg pendulum hanging on a 2.3m-long string. how far does th ependulum swing horizontally? Physics 3rd edition Douglas C. Giancoli

i need help for this problem if anyone could solve this, it's wonderful A 20g rifle bullet traveling 250m/s buries it self in a 3.8kg pendulum hanging on a 2.3m-long string. how far does the pendulum swing horizontally? Physics 3rd edition Douglas C. Giancoli