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Find dy/dx in terms of t for the curve given by the parametric equations x = tan(t) , y = sec(t) for -pi/2<t<pi/2.

We know that dy/dx = (dy/dt) * (dt/dx). Differentiating each of the equations with respect to t gives. dy/dt = sec(t) tan(t) and dx/dt = sec 2 (t). Since dt/dx = 1 / (dx/dt) we have that dt/dx = 1/(sec 2 (t)...
OC
Answered by Oliver C. • Maths tutor
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Wie schreibt man einen Kommentar?

Ein Kommentar ist eine Reaktion auf einen journaistichen Stück, oft in Zeitungen. Er is eine persönliche Stellungnahme des Autors. Aufbau:Überschrift - interessant für LeserThese /EinstiegZusammenfassung Arg...
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Answered by Nicol N. • German tutor
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How can I make my medical school personal statement stand out?

1. Don’t focus too much on your academics. Universities will already have access to this information and with the limited character count for your personal statement, every word counts. That’s why you should...
NS
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7x+5y-3z =16, 3x-5y+2z=-8, 5x+3y-7z=0. Solve for x,y and z.

There are three methods to solve these types of silmultaneous equation questions, substitutution, elimination and matrices. In this example we use substitution and elimination.Elimination example.Eq1). 7x+5y...
HM
Answered by Holly May B. • Maths tutor
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Explain the difference between the Irenaeus and Augustine theodicies (solution to the problem of the evil)?

Their understandings of natural evil is what differtentaites the Irenaeus and Augustine theodicies. Irenaeus believes that natural evil is necessary in the world so that we as humans have something to overco...
LG
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