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Grade: 11 
        
find the value of a for which the equation  acosx-cos2x=2a-7 possesses a solution
4 years ago

Answers : (1)

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Saurabh Kumar
askIITians Faculty
2411 Points 
							Express, cos 2x in basic cosine function, then assume cos x = y, it would be a quadtric equation then, apply the range of cos x and solve the equation...

Proceed accordingly..
4 years ago
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Course Features

  • 31 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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