Advertisements
Advertisements
प्रश्न
Solve for x : cos2 30° + sin2 2x = 1
बेरीज
Advertisements
उत्तर
cos2 30° + sin2 2x = 1
sin2 2x = 1 – cos2 30°
sin2 2x = `(1)/(2)`
2x = 30°
x =15°
shaalaa.com
Trigonometric Equation Problem and Solution
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - TEST YOURSELF [पृष्ठ ३३५]
