document.write( "Question 310951: I homeschool my son - 9th grader - we have just started Expressing square roots and there is a part that I am totally lost in. I do not remember or understand index's. How do I explain to him What an index of a square root is - here is one question: What two integers are these radicals between. The index is 3 and the square root is 29. Or the index is 4 and the square root is 15. Thank you. Joan \n" ); document.write( "
Algebra.Com's Answer #222394 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Please get a knowleageable tutor for your son. \n" ); document.write( "Math get harder and He deserves to learn. \n" ); document.write( "------------------------ \n" ); document.write( "I homeschool my son - 9th grader - we have just started Expressing square roots and there is a part that I am totally lost in. I do not remember or understand index's. How do I explain to him What an index of a square root is - here is one question: What two integers are these radicals between. The index is 3 and the square root is 29. Or the index is 4 and the square root is 15. Thank you. Joan \n" ); document.write( "========================= \n" ); document.write( "The index tells you what root is being expressed. \n" ); document.write( "If there is no index on the radical sign the root is \"square root\". \n" ); document.write( "If there is an index of 3 the root requested is \"cube root\" \n" ); document.write( "Then you have 4th root, then 5th root etc. \n" ); document.write( "========================================================== \n" ); document.write( "What two integers are these radicals between. The index is 3 and the square root is 29. Or the index is 4 and the square root is 15. \n" ); document.write( "--- \n" ); document.write( "cbrt(27)< cbrt(29) < cbrt(64) \n" ); document.write( "3 < cbrt(29) < 4 \n" ); document.write( "--------------------------------------- \n" ); document.write( "4thrt(1) < 4thrt(15) < 4thrt(16) \n" ); document.write( "1 < 4thrt(15) < 2 \n" ); document.write( "========================== \n" ); document.write( "Examples: \n" ); document.write( "sqrt(16) = 4 \n" ); document.write( "cbrt(27) = 3 \n" ); document.write( "4th root(16) = 2 \n" ); document.write( "5th root(32) = 2 \n" ); document.write( "etc. \n" ); document.write( "======================== \n" ); document.write( "You can also find a myriad of information on math topics \n" ); document.write( "using Google on the web. \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |