Math, asked by kshitijp1199, 7 months ago

3cos²x - 10cos x + 3 = 0
factorise

Answers

Answered by gaytri1509

2

Answer:

1/3 and 3

Step-by-step explanation:

3cos²x -10cos x +3 = 0

3cos²x -9cos x -cos x +3 = 0

3cos x( cos x-3) -1 (cos x-3) =0

(3cos x -1) (cos x-3) = 0

cos x = 1/3 , 3

Answered by anshikagupta82

1

cosx=3,cosx=1/3 is the answer

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