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Class XI
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Chapter 3
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Sum, difference and multiple-angle formulas
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Quiz
Class XI
Quick check : Sum, difference, multiple-angle
6 questions
Question 1 of 6
Score:
0
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A
cos
A
cos
B
−
sin
A
sin
B
\cos A\cos B - \sin A\sin B
cos
A
cos
B
−
sin
A
sin
B
B
cos
A
cos
B
+
sin
A
sin
B
\cos A\cos B + \sin A\sin B
cos
A
cos
B
+
sin
A
sin
B
C
sin
A
cos
B
−
cos
A
sin
B
\sin A\cos B - \cos A\sin B
sin
A
cos
B
−
cos
A
sin
B
D
sin
A
cos
B
+
cos
A
sin
B
\sin A\cos B + \cos A\sin B
sin
A
cos
B
+
cos
A
sin
B
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