Question

peove that:1+sin2A=(cos A+sin A)^2

pls guys do itt..❤️❤️ you will get 15 points​

Answer 1

Answer:

1+sin2a = 1+ 2sinAcosA

expanding RHS you get

1+2cosAsinA

Hence proved

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sorry

Answer 2

Answer:

1 + sin2A -- (1)

we know that

sin^2A + cos ^2A = 1

sin2A = 2sinAcosA

put both value into (1)

sin^2A + cos^2A + 2sinAcosA

{ (a + b)^2 = a ^2 + b ^2 + 2ab}

(sinA + cosA)^2

hope it helps