Answer:
a) sec (θ -π/2) = co secθ
b) 
Step-by-step explanation:
a)
Given co sec θ = -2.06
sec (θ -π/2) = sec(π/2 -θ) = co secθ
b)
we will use formula
sin A cos B + Cos A sin B = sin(A+B)
Given 
= 
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Answer:
6
Step-by-step explanation:
12 times 4 = 48
72 - 48 = 24
24 divided by 4 = 6
76 8x7 =56 8x3 =24 24 divided by 2 is 12 8x2=16 16 divided by two is 8 add them together 76
Can you explain more please