Develop javascript,cc$,$html to create chatbot which acts as a math and science

tutor, so if you ask him a question such as what is square root of $81,$ what is

Pythagorean theorem, define gravity, what is circumference of circle? etc it

should have a chatbot face and whenever you refresh the page, it should

prompt a message with options like do you need any help with math or physics

questions, then you can say that I need help with math questions, then it should

say, what area you are having difficulty with? Math, algebra, trigonometry etc.

then you choose trigonometry, then it should say, great, what is your question,

then you ask what is sine of $35$ degree, then it should answer like the sine if $35$

degrees is $x$ degrees. It should keep looping till you are satisfied.$|$

Please provide screenshots to show the code is

working with no errors and show picture of

chatbot in the background, there should be three

separate sheets, one for html$,$ one for css$,$ one for

JavaScript