Q. 9
If
then write the value of 
Answer :
Given,
We should find the value for
[by using the formulae, sin2θ + cos2θ = 1 and sin2θ = 2 sinθcosθ]
As already mentioned in the question, , so x lies in the 1st quadrant and both sine and cosine functions are positive.
Therefore, sin x + cos x
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Trigonometric Ratios of Sub Angles35 mins
Trigonometric Functions - 0568 mins
Trigonometric Functions - 0152 mins
Graphs of trigonometric ratios | Trigonometric Identities39 mins
Trigo ratios for compound angles48 mins
Trigonometry ratios of allied angles | Interactive Quiz38 mins
Conditional Identities31 mins
Transformation formula in compound angles | Interactive Quiz37 mins
Quiz on Graph of Trigonometric Ratios40 mins
Trigonometric Functions - 0658 mins




















Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation


RELATED QUESTIONS :
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Prove that:
Mark the Correct alternative in the following:
The value of cos (36o – A) cos (36o + A) + cos(54o – A) cos (54o + A) is
RD Sharma - Mathematics
Mark the Correct alternative in the following:
The value of is
RD Sharma - Mathematics