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Caroline Heycock [1] contributes to the discussion about whether specificational sentences are a special type of equatives or if they can be reduced to 'inverted predications': she argues that these sentences are a type of equative in which only one of the two noun phrases is a simple individual.
The equation is always expressed by some form of the verb be. [1] A thematic equative allows for all possible parts of a clause to be shifted to the start, to be the theme, so that the message can be structured in whatever way the speaker or writer wants. For example: An omelette is what the guests need for breakfast. [I'm going to tell you ...
However, more insidious are missing solutions, which can occur when performing operations on expressions that are invalid for certain values of those expressions. For example, if we were solving the following equation, the correct solution is obtained by subtracting from both sides, then dividing both sides by :
Figure 1. Plots of quadratic function y = ax 2 + bx + c, varying each coefficient separately while the other coefficients are fixed (at values a = 1, b = 0, c = 0). A quadratic equation whose coefficients are real numbers can have either zero, one, or two distinct real-valued solutions, also called roots.
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In mathematics, especially vector calculus and differential topology, a closed form is a differential form α whose exterior derivative is zero (dα = 0), and an exact form is a differential form, α, that is the exterior derivative of another differential form β. Thus, an exact form is in the image of d, and a closed form is in the kernel of d.
Common homework assignments may include required reading, a writing or typing project, mathematical exercises to be completed, information to be reviewed before a test, or other skills to be practiced. The effects of homework are debated. Generally speaking, homework does not improve academic performance among young children. Homework may ...
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