问题 Simplify the expression −1260−B Evaluate 1×19−9−1270−BAny expression multiplied by 1 remains the same 19−9−1270−B解题方案 −1260−B 显示解题方案 Find the roots B=−1260 Evaluate 1×19−9−1270−BTo find the roots of the expression,set the expression equal to 0 1×19−9−1270−B=0Any expression multiplied by 1 remains the same 19−9−1270−B=0Subtract the numbers 10−1270−B=0Subtract the numbers −1260−B=0Move the constant to the right-hand side and change its sign −B=0+1260Removing 0 doesn't change the value,so remove it from the expression −B=1260解题方案 B=−1260 显示解题方案
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微积分
三角学
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