Solution: The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec)
7. 2sin2 30∘ − 3cos2 45∘ + tan2 60∘
7. 2sin2 30∘ − 3cos2 45∘ + tan2 60∘
Solution: The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec)