this problem has been bugging me for a long time 1/1-secx + 1/1+secx i keep ending up with 2/1-sec^2(x) but the answer is -2cot^2(x) can anybody help what am i doing wrong
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Originally Posted by something3k this problem has been bugging me for a long time 1/1-secx + 1/1+secx i keep ending up with 2/1-sec^2(x) but the answer is -2cot^2(x) can anybody help what am i doing wrong Did you know: ? If you don't want to use that identity I suggest you write the expression as first.
Originally Posted by something3k this problem has been bugging me for a long time 1/1-secx + 1/1+secx i keep ending up with 2/1-sec^2(x) but the answer is -2cot^2(x) can anybody help what am i doing wrong so, you have so, so your denominator is equivalent to , thus giving you [because ]
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