1+4+7+...(3n-2)=n(3n-1)/2
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please mark as brainliest
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\huge \underline \bold \pink {♡IT'S Shefali ♡:-}
\huge{\mathbb{\red{Hello Mate!!}}}
\huge\boxed{\fcolorbox{red}{yellow}{answer}}
\huge\boxed{\fcolorbox{white}{pink}{thanks:-))}}
<marquee> please mark it as brainliest answer ✌️✌️</marquee>
<p style="color:cyan;font-family:cursive;background:black;font size:25px;"> He met the kind-hearted person near the shrine. The man saw the child in the crowd. ... His shrieks invited the attention of the kind man who lifted him.</p><p> .
<marquee>Shefali here</marquee>
<marquee>(◍•ᴗ•◍)❤(◍•ᴗ•◍)❤(◍•ᴗ•◍)❤</marquee>
<marquee>♥╣[-_-]╠♥♥╣[-_-]╠♥♥╣[-_-]╠♥</marquee>
<marquee>^_________^^_________^^_________^(◠‿◕)</marquee>
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