Answer:
The most straightforward way to obtain the expression for cos(2x) is by using the "cosine of the sum" formula: cos(x + y) = cosx*cosy - sinx*siny. cos(2x) = cos² (x) - (1 - cos²(x)) = 2cos²(x) - 1. = 2cos²(x) - 1.
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Answer:
I dont think you pasted the answer right... If you comment i can try and help you
Step-by-step explanation:
Answer:
-u+5
Step-by-step explanation:
plz mark as brainliest
3 x
---------= --------- ---------
15 180
15x=540
----- ------= 36 students.
15 15
Steps: Cross multiply to get 15x and 540. Divide both numbers by 15, then you found what x equals, which is the answer.
Answer:
number one is i thinks 10000000
Step-by-step explanation:
