Fsc Part 1 Maths Pakistan "Trignometric Identities"

Trignometry:

Trignometric Identities

• trignometric identities
• Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b)
• Proof: Cos(a+b)= (cos a)(cos b) - (sin a)(sin b)
• Trig Identities part 2
• trig identities part 3
• Laws of cosine
• Laws of Sine
• Navigation word Problem