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If the nth term of A.P. …

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If the nth term of A.P. 12,15,18......99 is 99. Then the value of n is equal to

    • Posted by Rohan Gupta 1 year, 10 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Shourya Kumar 1 year, 10 months ago

    an=99 a=12 d=3 an=a+(n-1)d 99=12+(n-1)×3 (n-1)×3=99-12 (n-1)=87÷3 n-1=29 n=29+1 [n=30].

    1Thank You

    Poornima Garg 1 year, 10 months ago

    a=12 d=15-12=3 an=99 an=a+(n-1)d 99=12+(n-1)3 99=12+3n-3 99=9+3n 99-9=3n 90=3n n=30

    3Thank You

    🥱🥱 ... 1 year, 10 months ago

    itna to kr dia bro... solve to khud hi kr loge...

    3Thank You

    Nikhil Gautam 1 year, 10 months ago

    Sir solve kar do

    1Thank You

    🥱🥱 ... 1 year, 10 months ago

    use 99 as an... put terms in formula an = a + ( n - 1 ) ( d ) 99 = 12 + ( n - 1 ) ( 3 )

    1Thank You

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