Answer:
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given y = cos² (x² + x³) ....(i)
By using differentiation formulas
a)
b)
<u><em>Step(ii):-</em></u>
Differentiating equation (i) with respective to 'x'
<em>First apply formula </em><em></em>
<em>Now we will apply formula </em>
<em>Again apply formula </em><em></em>
we know that trigonometric formulas
Sin 2θ = 2 sinθ cosθ
<u><em>Final answer:-</em></u>
Answer:
both are wrong
Step-by-step explanation:
raj's mistake: he did not multiply -2 by -5a/4
antonia's mistake: she went from -4a/4 to a which is wrong because -4/4 is -1.
Let
x---------> the number
The equation that represent this situation is
therefore
<u>the answer is</u>
The number is
Answer:
A quadratic equation ....[1] where, a, b and c are coefficient.
Then the solution is given by:
....[2]
As per the statement:
Given the equation:
⇒
On comparing with [1] we have;
a =1, b = 1 and c = -5
Then substitute these in [2] we have;
Therefore, the values of x are:
,