Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

 ଯଦି cot A + cos A = m ଏବଂ cot A - cos A = n ହୁଏ, ତେବେ:

1
 (m2 - n2)2 = 4 mn
2
 (m2 - n2)2 = 16 mn
3
 m2 - n2 = 16 mn
4
 m2 + n2 = 4 mn

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