Question

iv.Find the value of sin(45°+A)- cos(45°-A).​

Answer 1

Answer:

iv.Find the value of sin(45°+A)- cos(45°-A).

Step-by-step explanation:

iv.Find the value of sin(45°+A)- cos(45°-A).

I don't know

Answer 2

Answer:

sin(45+A) - cos(45-A)

sin45cosA+cos45sinA - (cos45cosA+sin45sinA)

cosA/√2 + sinA/√2 - (cosA/√2 + sinA/√2)

cosA√2 + sinA/√2 -cosA/√2 -sinA/√2

= 0 answer

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Step-by-step explanation:

using formula

of sin(A+B)=sinAcosB+ cosAsinB

and

cos(A-B)= cosAcosA- sinAsinB