问题 Simplify the expression cot(90e2grs) Evaluate cot(90gre×es)解题方案 更多步骤 Evaluate 90gre×esMultiply the terms 更多步骤 Evaluate e×eMultiply the terms with the same base by adding their exponents e1+1Add the numbers e2 90gre2sMultiply the numbers 90e2grs cot(90e2grs) 显示解题方案