Maths / Introduction to Trigonometry / Reciprocal Trigonometric Ratios

QUESTION
 

If cot large cot theta =frac{2ab}{a^2-b^2},  find the values if large sintheta;;and;;costheta

EXPLANATION
Explain TypeExplanation Content
Text

cot theta =frac{1ab}{a^2-b^2}=frac{BC}{AB}

By pythagoras theorem,

AC = ( a^2 + b^2)

sin theta=frac{AB}{AC}=frac{(a^2=b^2)k}{(a^2+b^2)k}=frac{a^2-b^2}{a^2+b^2}

And cos theta=frac{BC}{AC}=frac{(2ab)k}{(a^2+b^2)k}=frac{2ab}{a^2+b^2}

View Contents
(Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)
Self Learning
Testimonials
No Preview
Student Feedback on Methodology - Shreya Shrivastava C/o ABHYAS Academy
 8th
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Back
Courses We Offer
(Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)