WebSo, you must see whitch quadrant is the result of the sum of your vectors, then you must know that the calculator will give you the anwear of arctangent between pi and -pi (180º and -180º), then sum or subtract pi or 2*pi (180º or 360º) to put it … WebThese two numbers are the scalars. So they're asking me to do scalar multiplication. To do the first scalar multiplication to find 2A, I just multiply a 2 on every entry in the matrix. …
Example 7 - Find 2A - B if A = [1 2 3 2 3 1], B = [3 -1 3
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Simplify 2a^2 Mathway
WebFind many great new & used options and get the best deals for 5V 2A AC Adapter Power Supply Charger [5 Volts 2 Amps Regulated Switching Pow... at the best online prices at eBay! Free shipping for many products! WebNov 17, 2024 · Solution: The value of (2A + 3B) is . We know that the sum can be obtained by multiplying the matrices with 2 and 3 and then adding them. It is given to us that A= [-5 2 ] and B= [1 0]. So, 2A can be obtained by multiplying 2 and [-5 2 ]. Similarly, 3B can be obtained by multiplying 3 and [1 0]. To add these matrices, we need to add the terms ... WebOct 28, 2024 · Your solution is correct except for a small problem. Note that when you cancelled $\sin (\alpha)$ from both sides you have to make sure to add the solutions of $\sin (\alpha)=0$ as well.. Also, you could have used the identity, $$2\cos ^2 (\alpha ) = 1+ \cos (2\alpha)$$ to have a shorter proof, but what you did in just fine. hogame song