The question is : If A+B+C = 270 degrees then what is the value of: cos2A + cos2B + cos2C + 4sinA X sinB X sinC. I'll mark as Brainliest. 50 points.
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The question is : If A+B+C = 270 degrees then what is the value of: cos2A + cos2B + cos2C + 4sinA X sinB X sinC. I'll mark as Brainliest. 50 points.
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