- 5π/4
- 2π/3
- π/3
- 3π/4

Option 3 : π/3

Let two angles = A and B, where A > B.

∴ A + B = (7π/12) ...... (1)

A - B = 15º

= (15π/180) radian

= π/12 ...... (2)

On adding both equaation (1) & (2)

⇒ 2A = (7π/12) + (π/12)

⇒ 2A = 8π/12 = 2π/3

**∴ A = π/3**

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