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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",18,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":426},"9VQvk5D4ShmyjsuspGcaNth9dxj7He","q","If Un = n(n² + 1), evaluate U5 - U4","ans",[414],2,"2013","course","mathematics","exp","Un = n(n² + 1)
\n
\nU⁵ = 5(² + 1)
\n
\n= 5(25 + 1)
\n
\n= 5(26) = 130
\n
\nU⁴ = 4(4² + 1) = 4(16 + 1)
\n
\n= 4(17) = 68
\n
\nU5 - U4 = 130 - 68
\n
\n= 62","opts",[422,423,424,425],"18","56","62","80",5,"5","initComment","initReply","actionData","errors"]

WAEC - Mathematics (2013 - No. 5)

Explanation

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