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RRB Assistant Loco Pilot and Technician Model Paper 4 with solutions
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© examsnet.com
Question : 11
Total: 75
If tan A = n sin B and sin A = m sin B, then the value of
cos
2
A is—
m
2
n
2
m
2
×
n
2
m
2
–
n
2
m
2
+
n
2
Validate
Solution:
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