pleas #💡सामान्य ज्ञान e share for students
💡 ज्ञान की बातें - 4 . ( 0 - B ) 2 = ( a + B ) 2 - 4aB 5 . q2 + B2 = ( a + B ) 2 - 2aB . 6 . Q2 + B = ( a - B ) 2 + 2aB . 7 . a - B2 = ( a + b ) ( a - B ) 8 . 2 ( a2 + B2 ) = ( a + B ) 2 + ( a - b ) 2 9 . 4aB = ( a + b ) 2 - ( 4 - B ) 2 10 . aB = { ( a + b ) / 2 } - { ( 0 - 1 ) / 2 ) 2 11 . ( a + B + c ) 2 = Q2 + B2 + C2 + 2aB + BC + Ca ) 12 . ( a + B ) % = Q3 + 3aB + 30B2 + B 13 . ( a + B ) = a + B3 + 3aB ( a + B ) 14 . ( a - B ) > = 03 - 3aB + 30B2 - B3 15 . a3 + B3 = ( a + b ) ( 02 - 0B + B ) 16 . a3 + B3 = ( a + B ) - 3aB a + B ) 17 . 03 - B = ( a - B ) ( a ? + AB + B2 ) 18 . 03 - B3 = ( a - B ) + 3aB ( 0 - B ) sino = 0 sin30° = 1 / 2 sin45º = 1 / 2 sin60° = 13 / 2 sin90° = 1 Costs opposite of sin Tan0º = 0 Tan30º = 1 / 13 Tan 45º = 1 Tan60° = V3 Tan90º = 0 COT Ls opposite of Tan SECO° = 1 SEC 30° = 2 / 13 SEC45º = V2 SEC60° = 2 SEC90º = 0 COSEC is opposite of sec 2 sinacos B = sin ( a + B ) + sin ( a - B ) 2 Cosasins = sin ( a + B ) sin ( a - B ) 2 CosaCose = Cos ( a + B ) + Cos ( a - B ) 2 sinasins = Cos ( a - B ) - Cos ( a + B ) sin ( a + B ) = sina COSB + Casa sine . > > Cos ( a + B ) = Cosa COSB - sina sini . > > sin ( - B ) = sinaCoss - Cosasins . - ShareChat
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