Mean Value of a Function What is the mean value of a function? The?mean value of a function?may be thought of as the ‘average’ value of a function over a given interval For a function f(x),?the mea...
Improper Integrals What are improper integrals? An?improper integral?is a definite integral where one or both of the limits is either: Positive or minus infinity A point where the function is undef...
Adding and Subtracting Volumes Why might I need to add or subtract volumes of revolution? As with the?area between a curve and a line?or the?area between 2 curves, a required volume may be created ...
Volumes of revolution around the x-axis What is a volume of revolution around the?x-axis?? A?solid?of?revolution?is formed when an?area bounded by a function?(and other boundary equations) is rotat...
Edexcel IGCSE Biology: Double Science 复习笔记 3.2.2 Genetic Inheritance Key Definitions A?gene?is a short length of DNA found on a chromosome that codes for a particular?characteristic?(exp...
Edexcel IGCSE Biology: Double Science 复习笔记 3.2.1 DNA & the Genome The Genome The?entire set of the genetic material?of an organism is known as its?genome In 2003, scientists complete...
Edexcel IGCSE Biology: Double Science 复习笔记 3.1.7 Human Sex Hormones Secondary Sexual Characteristics Primary sexual characteristics are present during development in the uterus and are t...
Edexcel IGCSE Biology: Double Science 复习笔记 3.1.6 Pregnancy Implantation & Development of the Foetus After fertilisation in the?oviduct, the zygote travels towards the?uterus This usu...
Edexcel IGCSE Biology: Double Science 复习笔记 3.1.5 Sexual Reproduction in Humans The Male Reproductive System The male reproductive system Male Reproductive Str...
