simplify (1-costita)(1+costita)(1+cot to the power of 2 tita)
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Step-by-step explanation:
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let us write in place of tita=@
(1-cos@)(1+cos@)(1+cot^2@)
(1^2-cos^2@)(1+cot^2@)
(1-cos^2@)(1+cot^2@)
1+cot^2@-cos^2@-cos^[email protected]^2@
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