Answer:
m(∠R) = 5°
Step-by-step explanation:
By applying sine rule in the given triangle RST.
sin(∠R) =
= 0.09237
m(∠R) =
= 5.3°
≈ 5°
Simplify the expressions below a. (y^3)^2y^4 b. (z^-3)^-2z^3
1 answer:
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Answer:
sin/4 * sin
/6 = 1/2 *(cos
/12 - cos 5
/12)
Step-by-step explanation:
Formula:- sinX sinY = (1/2) [ cos (X - Y) - cos (X + Y) ]
sin(π/4)sin(π/6)
= (1/2)[cos(π/4 - π/6) - cos(π/4 + π/6)]
= (1/2)[cos(3π/12 - 2π/12) - cos(3π/12 + 2π/12)]
= (1/2)[cos(π/12) - cos(5π/12)]