Відповідь:
Пояснення:
62 . a) . . . = 10p/( p - q ) - 3p/( p - q ) = ( 10p - 3p )/( p - q ) ;
б) . . . = 5a/( a - b ) - 5b/( a - b ) = ( 5a - 5b )/( a - b ) = 5( a - b )/( a - b ) = 5 ;
в) . . . = ( x - 3 )/( x - 1 ) + 2/( x - 1 ) = ( x - 3 + 2 )/( x - 1 ) = ( x - 1 )/( x - 1 ) = 1 ;
г) . . . = a/(2a - b ) - ( 3a - b )/(2a - b ) = ( a - 3a + b )/(2a - b ) =
= - (2a - b )/(2a - b ) = - 1 ;
д) . . . = a/( a² - 9 ) - 3/( a² - 9 ) = ( a - 3 )/( a² - 9 ) = 1/( a + 3 ) ;
е) . . . = y²/( y - 1 ) - 1/( y - 1 ) = ( y² - 1 )/( y - 1 ) = y + 1 .
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Answers & Comments
Відповідь:
Пояснення:
62 . a) . . . = 10p/( p - q ) - 3p/( p - q ) = ( 10p - 3p )/( p - q ) ;
б) . . . = 5a/( a - b ) - 5b/( a - b ) = ( 5a - 5b )/( a - b ) = 5( a - b )/( a - b ) = 5 ;
в) . . . = ( x - 3 )/( x - 1 ) + 2/( x - 1 ) = ( x - 3 + 2 )/( x - 1 ) = ( x - 1 )/( x - 1 ) = 1 ;
г) . . . = a/(2a - b ) - ( 3a - b )/(2a - b ) = ( a - 3a + b )/(2a - b ) =
= - (2a - b )/(2a - b ) = - 1 ;
д) . . . = a/( a² - 9 ) - 3/( a² - 9 ) = ( a - 3 )/( a² - 9 ) = 1/( a + 3 ) ;
е) . . . = y²/( y - 1 ) - 1/( y - 1 ) = ( y² - 1 )/( y - 1 ) = y + 1 .