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If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=
- a)sin2α
- b)cos2α
- c)tan2α
- d)cot2α
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/...
If we have the expression cos^(-1)(x/a) cos^(-1)(y/b), we can represent it as:
acos(cos^(-1)(x/a)) * bcos(cos^(-1)(y/b))
Using the inverse cosine identity, cos(cos^(-1)(u)) = u, we can simplify the expression to:
ax * by
Which can be further simplified to:
abxy
acos(cos^(-1)(x/a)) * bcos(cos^(-1)(y/b))
Using the inverse cosine identity, cos(cos^(-1)(u)) = u, we can simplify the expression to:
ax * by
Which can be further simplified to:
abxy
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If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer?
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If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer?.
If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If cos-1(x/a)+cos-1(y/b)=α, then (x2/a2)-(2xy/ab)cosα+(y2/b2)=a)sin2αb)cos2αc)tan2αd)cot2αCorrect answer is option 'C'. Can you explain this answer?.
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