the equations sin (A – B) =, cos (A + B) =.
A = 600 and B = 300
A = 150 and B = 450.
A = 450 and B = 150
A = 300 and B = 300
As we learnt
Trigonometric Ratios of Special Angles -
- wherein
These are the values of trigonometric ratios for standard angles.
The equations are sin (A – B) = = sin 300 Þ A – B = 300. …(1)
And cos (A + B) = = cos 600 Þ A + B = 600. ...(2)
From (1) and (2), A = 450 and B = 150.
Option 1)
A = 600 and B = 300
Option 2)
A = 150 and B = 450.
Option 3)
A = 450 and B = 150
Option 4)
A = 300 and B = 300
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