Step-by-step explanation:
20 each because it's like tgat
Answer:
a=8
Step-by-step explanation:
Answer:

Step-by-step explanation:

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Since you know that DA and DC are equal in length, you can say 2x-3=x+2, when you add 3 to both sides, it becomes 2x=x+5, subtract x from both sides, and you find that x=5
This would be cos^2x, because when you foil out the equation you get 1-sin^2(x).
1-sin^2(x)=cos^2(x)