What is simplify-3sin^2(a)-6-3cos^2(a) ?

The solution to simplify-3sin^2(a)-6-3cos^2(a) is -9

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simplify-3sin^2(a)-6-3cos^2(a)

simplify

- 3 sin^{2} (a) - 6 - 3 cos^{2} (a)

- 9

Solution steps

- 3 sin^{2} (a) - 6 - 3 cos^{2} (a)

Use the Pythagorean identity:

cos^{2} (x) + sin^{2} (x) = 1

= - 3 (2 + 1)

Factor

- 3 sin^{2} (a) - 6 - 3 cos^{2} (a) : - 3 (sin^{2} (a) + 2 + cos^{2} (a))

= - 3 (sin^{2} (a) + cos^{2} (a) + 2)

= - 9

3 x + 52 x + 3

9 b^{2} - 4 a^{2} + 20 a - 25

x^{10} - (1 0^{x})^{6} + 9 x

tan^{2} (2 x) - sin^{22} (x)

125 m^{3} + 64 n^{3}

What is simplify-3sin^2(a)-6-3cos^2(a) ?
The solution to simplify-3sin^2(a)-6-3cos^2(a) is -9