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If 3 cos 0=2 then prove that: 6sin²0-5cos 0 = 0.​

If 3 cos 0=2 then prove that: 6sin²0-5cos 0 = 0.​
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If 3 cos 0=2 then prove that: 6sin²0-5cos 0 = 0.​

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User Thechmodmaster
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1 Answer

4 votes

Answer:

Step-by-step explanation: 6(1 - cos²0) - 5/3.3cos0

= 6 - 2.3cos²0 - 5/3.3cos0 = 6 - 2.4 - 10/3 = -16/3

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User Derek Kurth
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