Verity the identity. sin(x + y)cos(x – y) = sin x cos x + sin y cos y Working with the left-hand side, use a Product-to-Sum Identity, and then simplify. LHS - sin(x + y)cos(x – y) -글 (sin(x + y +x-y) + Use the Double-Angle Identities as needed, and then simplify. L내S-글 (2(sin x)( (cos sin x cos x +

Q: . Find x R 12.5 x + 5 V 7.5 x- 5 T

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Q: A STU is similar to A VWX.Find VW. W 21 28 S U 24

A: We have △STU is similar to △VWX. So we get STVW=TUWX⇒VW=ST·WXTU=21·428=21·17=3

Q: V 48° 2 38° Z.

A: The given circle is: As we know the sum of angles of a triangle is 180°.

Q: +2 8. 1- 74

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Q: I'li38)" (.38)

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Q: Construct the following. 1. A square whose side equal to 2.3 cm. 2 A rectangle whose length is equal…

A: