Please find the attached file for a proper understanding of the question given here. The diagram in the file attached is the complete accompanying diagram of the question.
As per that diagram, 
(which is given)
and we know that 
(vertically opposite angles).
Thus, the only way ΔDSB ≅ ΔTSR by SAS is when 
as indicated in the diagram.
Thus, is the correct answer.
Cos(A-B) = cosAcosB + sinAsinB
<span>
cos(</span>π/2 - θ) = cos(π/2)cosθ + sin(π/2)sinθ
π/2 = 90°
cos(π/2) = cos90° = 0. sin(π/2) = sin90° = 1
cos(π/2 - θ) = cos(π/2)cosθ + sin(π/2)sin<span>θ
</span>
= 0*cosθ + 1*sin<span>θ = </span>sin<span>θ
Therefore </span>cos(π/2 - θ) = sin<span>θ
QED </span>
Answer:
1,-5 and -1,-3
Step-by-step explanation:
Answer:
the answer is 8
Step-by-step explanation:
8x6=48
