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The first thing to recognise is this is a quadratic in disguise, therefore we can rewrite the equation in terms of a new variable y. Where y=x 3 The equation then becomes 8y 2 +7y-1=0 . We then factorise thi...

Since the question is a trigonometry question, we shall use integration by recognisation, in which case, we found out that the derivative of sin x is cos x.Therefore by chain rule, we can integrate the funct...

When translating for in French, we have to take into consideration the three prepositions which can be used: d epuis, pendant and pour . The one which is selected depends on the situation and the action bein...

Say you want to find the square root of the complex number 3+2i. We can assume that the answer we want will be in the form a+bi. It follows then, that you can also write 3+2i as (a+bi) 2 . Expanding this giv...

From the Master's opening commands to the Boatswain to "speak to the mariners" to Prospero's final mitigated imperative in the Epilogue asking the audience to "set [him] free" through app...