We have to break each degree in terms of 90
A) 
Which is in third quadrant, therefore sine is negative hence
B) 
Which is in third quadrant, therefore cosine is negative hence
C) 
Which is in third quadrant, therefore tangent is positive hence
D) 
Which is in third quadrant, therefore cosec is negative hence
not defined
E)
Which is in third quadrant, therefore secant is negative hence
F) 
Which is in third quadrant, therefore tangent is positive hence
not defined
Hence only 
and
have value -1
Hope this will help
Answer:
We know that an isosceles triangle has 2 of its sides being equal
With R, being the midpoint of PS, we can say that
PR=RS
Noting that, with R as midpoint, we can conclude that RT is a straight line which divides angles TPR and TSR into 2 right angle triangles
Step-by-step explanation:
therefore angle at P is 45°. Angle at S also 45°
Therefore PT = TS
This is because T is 45 degrees as well as P which is also 45 degrees
angle in triangle PTS is 180 degrees
R is 90 degrees, P is 45 degrees and the whole of T is also 45 degrees(which has been split into 2)
Question:
Consider the sequence of numbers: 
Which statement is a description of the sequence?
(A) The sequence is recursive, where each term is 1/4 greater than its preceding term.
(B) The sequence is recursive and can be represented by the function
f(n + 1) = f(n) + 3/8 .
(C) The sequence is arithmetic, where each pair of terms has a constant difference of 3/4 .
(D) The sequence is arithmetic and can be represented by the function
f(n + 1) = f(n)3/8.
Answer:
Option B:
The sequence is recursive and can be represented by the function
Explanation:
A sequence of numbers are
Let us first change mixed fraction into improper fraction.
To find the pattern of the sequence.
To find the common difference between the sequence of numbers.
Therefore, the common difference of the sequence is 3.
That means each term is obtained by adding 
to the previous term.
Hence, the sequence is recursive and can be represented by the function
The value of λ is - 2 and other zero is also - 2.
<h3>Justification:</h3>
Let <u>p(x) = 2x² + 3x + λ</u>
<u>Its one zero is 1/2</u>, so p(1/2) = 0
p(1/2) = 2 × (1/2)² + 3 × 1/2 × λ
⇒ 1/2 + 3/2 + λ = 0 ⇒ 4/2 + λ = 0
⇒ 2 + λ = 0 ⇒ λ = - 2
<u>Let the other zero be α</u>,
Then α + 1/2 = - 3/2 ⇒α = - 3/2 - 1/2 = - 2
