monistefania241 monistefania241

01-12-2017
Mathematics

contestada

1) 12sin5x+cos5x=9
2) 3sin7x-2cos7x=3
3)3sec3x=-4
4) csc4x=-3

for #3 and 4 I have to find all the possible angles

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danteisawesome danteisawesome

01-12-2017

the formula of the angle for 3 and 60 degrees + 4 is 54 degrees

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