The resultant of two forces P and Q acting at an angle is

• A. <img src="/_files/images/mechanical-engineering/engineering-mechanics/3-10-1.png">
• B. <img src="/_files/images/mechanical-engineering/engineering-mechanics/3-10-2.png">
• C. <img src="/_files/images/mechanical-engineering/engineering-mechanics/3-10-3.png">
• D. <img src="/_files/images/mechanical-engineering/engineering-mechanics/3-10-4.png">