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Pag: o) o cas? L0 |
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Answer» = cos^2(45 + theta) + cos^2(45 - theta) = cos^2(45 + theta) + sin^2{90 - (45 -theta)} = cos^2(45 + theta) + sin^2(90 - 45 + theta) = cos^2(45 + theta) + sin^2(45 + theta) = 1 Like my answer if you find it useful! |
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