Math, asked by pearlileto01, 1 day ago

Solve for x; x = 1 - (sinA - cos A)^2​

Answers

Answered by harishiva6753
1

Answer:

Step-by-step explanation:

x=1-(sinA-cosA)²

x=1-(sin²A+cos²A-2sinAcosA)                 [applying (a-b)² formula]

x=1-1-2sinAcosA                                       [sin²A+cos²A=1]

x= -2sinAcosA                                            

∴ x= -sin2A                                                    [2sinAcosA=sin2A]

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