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Cot 12 + cot 38 × cot 52 into cot60×cot 78 |
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Answer» Answer:This arrangement can be rearranged as : (cot12*cot72)(cot38*cot52)cot 60 = {cot12*cot(90-12)}{cot38*cot(90-38) cot 60 = cot 12 * TAN 12 * cot 38 * tan 38 *cot 60 = 1*1* cot 60 = cot 60 = 1/2 Step-by-step explanation: |
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