Limits of Trigonometric Functions 3 Examples Part 1 

He multiplied cosx to both top and bottom to cancel out the cosx on top

The cos x becomes the lcm. eg4/3 + 2 becomes 4+2*3/3

Renyolds Trimax

Thanks for appreciation

Happy with few. At least you saw it. I have more than 100 videos in Hindi. Hindi Videos have even less views: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fXSwhR0Bb5k.html

same problem D:

they are making the denominators equal

Taking lcm

[ sinx * ( 1 - cosx ) ] = [ sinx - (sinx*cosx) ] Distribute the sinx to (1-cosx) and you will see it's equivalent to [ sinx - sinx*cosx ]

@@neidan4437 thank you, i appreciate it.

Algebra 2: Prentice Hall Mathematics, Calculus: James Stewart

Anil Kumar I recommend you read text books about numerical analysis as well. It’s really interesting and involves mostly calculus, linear algebra and some knowledge of computer programming! At university I chose to do complex analysis and numerical analysis, and I didn’t referent either of them!

cosx came from the numerator. Hope that helps. Thanks

(a÷b)÷c gives as a÷b.c Hope that helps

@@nutansingh648 sirr....what is the name of that method in algebra .... Thank you sir❤

Joshua Macuna tan x = sin x/cos x so.. sin x/cos x - sin x (simplify) you’ll get (sin x -sinxcosx)/cosx then all divided by sin^3x

@@arnoldlegarte9224 I get that.... what im asking for is where did he get the (1-cosx)

he factored out sin x

@@joshuamacuna6196 pythagorean identities, sin^2 theta + cos^2 theta = 1