Help, I don’t know what I’m doing
Trigonometry
2 answers:
The answer is
The needed trigonometric values :
- The value of cot 60° = 1/√3
- The value of cos 60° = 1/2
Hence, the value of the expression is :
- cot 60° × cos 60°
- 1/√3 × 1/2
- 1/2√3
Answer:
Step-by-step explanation:
using the 30- 60- 90 triangle for exact values , then
tan60° = , and
cot60° = =
cos60° =
cot60° cos60°
= ×
= ← rationalise the denominator by multiplying by
= ×
=
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See attached PDF. (The censor thinks there are some unseemly words in there.)
4cosec 0+cosec 0 + cosec 0 + 2 cosec 0
8 cosec 0
step 1First, see how many letters in MATHCOUNTS are also in TEACH.
M no
A yes
T yes
H yes
C yes
O no
U no
N no
T yes
S no
That is 5 out of the 10 letters.
so
<span>the probability=</span>5/10-------> 1/2
<span>
the answer is1/2</span>
There is no way this is a middle school question
D, as 32cm by 8cm is approx. 260cm square.