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  1. Yep, ordinary algebra.  Divide both sides by the same value and the equation remains balanced.  The LHS still = the RHS.  So divide away and enjoy.

    3 Answers · Science & Mathematics · 19/08/2020

  2. RHS = 2tan(2x)sin²(x) = tan(2x){1 - [1 - 2sin²(x)]} = tan(2x)[1 - cos(2x)] = tan(2x) - tan(2x)cos(2x) = tan(2x) - sin(2x) = LHS

    2 Answers · Science & Mathematics · 15/01/2021

  3. RHS = cot²(x)[csc³(x) - csc(x)] = cot²(x)csc(x)[csc²(x) - 1] = cot²(x)csc(x)cot²(x) = cot⁴(x)csc(x) = LHS

    1 Answers · Science & Mathematics · 09/05/2020

  4. ... - 3n - 1) P(1): 1² = 1/2(1)[6(1)² - 3(1) - 1] LHS = 1 RHS = 1 Proposition P(1) is confirmed...

    3 Answers · Science & Mathematics · 20/01/2021

  5. ... as x² = (2.3 - x)*1.19 * 10 ^-7. Then put all on the LHS . Then expand. Notice now that you have a quadratic of the form ...

    3 Answers · Science & Mathematics · 17/01/2021

  6. ...3 terms to evaluate: (3-6)x + (4-6)x + (5-6)x = 72. Simply the LHS . What does it give? [ = -6x ] Then, solving for x ...

    2 Answers · Science & Mathematics · 11/11/2020

  7. x^2 = y  ...  y is a variable, not a constant like 4 ...  different rules apply   a^y = b^x     a = b^(x/y)  until you know a number value for b and y (which has become a root) we don 't know if the answer is pos, neg, or imaginary.

    2 Answers · Education & Reference · 30/03/2020

  8. ...reaction  PCl3 + 3H2O = H3PO4 + 3HCl Cl on the LHS has ON -1 so P has ON = +3 O has...

    1 Answers · Science & Mathematics · 12/01/2021

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