Answer :
We will first find out value of sinx and siny,
(i)sin(x + y) = sinx.cosy + cosx.siny
(ii)cos(x - y) = cosx.cosy + sinx.siny
= 
(iii)Here first we will calculate value of tanx and tany,
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
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 :
True and False<br
Mathematics - ExemplarFind the values o
RD Sharma - MathematicsProve that :
<
The value of cos<
Mathematics - ExemplarThe value of sin
Mathematics - Exemplarcos 2θ cos 2<span
Mathematics - ExemplarThe value of <spa
Mathematics - ExemplarIf <span lang="EN
Mathematics - ExemplarIf <span lang="EN
Mathematics - ExemplarFill in the blank
Mathematics - Exemplar