WHICH TERM OF AN AP 5,2,-1,.....WILL BE -22?
 

Asked by meghnasinghverma | 26th Dec, 2015, 08:57: AM

Expert Answer:

C o n s i d e r space t h e space g i v e n space A P 5 comma space 2 comma space minus 1 comma space... comma space minus 22 I n space t h e space g i v e n space A P comma space i n i t a l space t e r m comma space a equals 5 C o m m o n space d i f f e r e n c e comma space d equals 2 minus 5 equals negative 3 G e n e r a l space t e r m comma space a subscript n equals a plus open parentheses n minus 1 close parentheses d rightwards double arrow negative 22 equals 5 plus open parentheses n minus 1 close parentheses open parentheses negative 3 close parentheses rightwards double arrow negative 22 equals 5 plus negative 3 n plus 3 rightwards double arrow 3 n equals 5 plus 22 plus 3 rightwards double arrow 3 n equals 30 rightwards double arrow n equals 30 over 3 rightwards double arrow n equals 10

Answered by Vimala Ramamurthy | 27th Dec, 2015, 07:57: AM

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