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(1+tan^2 theta)(1-cos^2 theta)=? |
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Answer» ONG>Step-by-step EXPLANATION: (1+tan²∅)(1-cos²∅) = 1 - cos²∅ + tan²∅ - cos²∅tan²∅ = sin²∅ + tan²∅ - sin²∅ = tan²∅ OR (1+tan²∅)(1-cos²∅) = (sec²∅)(sin²∅) = tan²∅ |
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