First we use sin(a+b)= sinacosb+sinbcosa
and cos(a+b)=cosa cosb -sinasinb
tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)
and sin(x+pi/2) = sinxcospi/2 + sinpi/2cosx =cosx,
<span>cos(x+pi/2) = cosxcospi/2- sinxsinpi/2= - sinx,
</span> because <span>cospi/2 =0, </span>and <span>sinpi/2=1
</span><span>=tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)= cosx / -sinx = -1/tanx = -cotx
</span>from where <span>tan(x+pi/2)=-cotx</span>
Step-by-step explanation:
HERE,
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we know that,
sum of consecutive angle of a parallelogram =180
so,
According to the question,
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Answer:
C is the answer
Step-by-step explanation:
pls add me on brainlist
Answer:
$37.70
Step-by-step explanation:
65 divided by 100 multiplied by $58 is $37.70
