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3a = 6i + 9j

-b = -4i + 2j

3a-b = (6i-4i) + (9j+2j) = 2i + 11j 

Using the integer rule 1/ (xⁿ) = x^-n question becomes ∫(4x - 2(x^-3)) dx

Then using the formula ∫xⁿ dx = (xⁿ⁺¹)/n+1 and assuming there may be a...

I would break this down into simple steps:

Step 1 - Equate the 2 expressions: (3 + 13x - 6x²) / (2x - 3) = Ax + B + C / (2x - 3)

Step 2 - Multiply both sides by the demoninator: 3...

The domain of the function allows us to write f(x)=x^x  as f(x)=e^{ln(x^x)}=e^{x ln(x)} (since ln(x) is defined on (0,oo) only). Using the standard derivati...

180-140=40 

40/2 =20

each other angle is 20 degrees