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f(x) = 5cos(x) + 4sin(x)to find f^,(x) this is just another notation for the derivative.To differentiate trigonometry I always use this one simple trick which I will show on th...

There are several key things you need to factor into a primary source analysis. These are provenance, purpose and subject knowledge.
Provenance relates primarily to the origins of the source. For exa...

Glucose is absorbed by diffusion into the bloodstream./ Then blood delivers glucose to muscles in capilleries.

Any two from:acid in the stomach kills pathogens in food/ skin forms a barrier or produces antimicrobial secretions/ hairs in the nose trap pathogens/ trachea or bronchi has mucus which traps pathogens

This is a quadratic inequality, because we have an x² term, so we answer this question by examining the graph of the associated equation y = x² - 9, and then find out where this grap...