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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...

To blame Gorbachev alone is an oversimplification. Reforms may have accelerated the decline of the USSR, but their failure was contingent on long standing economic conditions. Firstly - what were Gorbachev's...

To solve this question we need to find the values of x which work for the equation x^(2) + 4x + 4 = 0. To solve the equation we can factorise the left-hand side into brackets which will multiply together to ...

Let's suppose that (0+1i) 0.5 = x+iy, where x and y are both real numbers. This is the most general form of a complex number. Now let's square both sides. This gives 0+1i = x 2 +2i xy - y 2 . We will equate ...

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...