Trigonometric Identities
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can someone help me i ve tried these problems for a long time but i can't get them. number 1 prove 1-2cos^2x=sinxcosx(tanx-cotx) and the second one is cos^2(t/2)=1+sect/2sect
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@Billsfan18 ahaha! Lol. Dats fuckin hilarious! and so freakin true!
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3 minutes of this video has taught me more than my pre calc teacher has in 2 weeks. amazing
1 week ago 2
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This is the future of education. I already showed many of my friends this method of learning and ALL of them preferred this over long lectures by teachers.
I think videos are an efficient way of learning new things because you can pause and rewind to understand the material better. In a class, everyone learns new things at a different pace.
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I used to be good at Trigonometry, until I took a secant to the knee.
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if only this was in 720p......
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He is indian i think. type salman khan he even won 2 million dollars from google + he is sponsored by bill gates!!!!
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why can't we have shortened weeks where free days are to learn thorugh these, so much better doing it in our own time and far clearer and includes more than lessons. so much just missed out in class may as well not be there at all and do whole a level through these vids.
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Try and like and then dislike my comment and see what happens!!
1 month ago 2
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@EXpoZuR What you got a problem, hater youre probaly from Santiago homes...jk...but still
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you know what i really love about this. i canhit the pause button and go to the bathroom.
Billsfan18 10 months ago 98
Good teacher. Seductive voice he has too.
3333sweetie 11 months ago 48