You can add the exponents of x^3*x^4 instead of writing it all out. Do you would just have to add 3+4 since the variable (x) is the same. And you would get x^7
Answer:
24
Step-by-step explanation:
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Answer:
17
Step-by-step explanation:
Sin(a)=

To find sin(2a) = 2*sin(a)*cos(a), we ned to find cos(a)
We know that,
sin²(a) + cos²(a) = 1
cos(a) = 
cos(a) = 
Thus, cos(a) = +- 
We know a is in second quadrant and thus cos(a) is -
because cosine is always negative in the second quadrant.
Therefore,
sin(2a) = 2*sin(a)*cos(a) = 