TMUA 2016 Paper 2 Q3 — Worked Solution

P2·Trigonometry·4.5Official · 2016 · Q3

pythagorean-identityquadratic-in-sinlargest-root

What is the value, in radians, of the largest angle

x

in the range

0 \leq x \leq 2 π

that satisfies the equation

8 sin^{2} x + 4 cos^{2} x = 7

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