1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ASHA 777 [7]
2 years ago
6

Verify csc^2t-cos t sect= cot^2 t

Mathematics
2 answers:
Ymorist [56]2 years ago
7 0

Rewriting the left hand side,

csc²t - cost sec t

= (1/sin²t)-(cost)(1/cost)

= 1/sin²t - 1

= 1/sin²t - sin²t/sin²t

= (1-sin²t)/sin²t

= cos²t/sin²t

= cot²t

nata0808 [166]2 years ago
6 0

Step-by-step explanation:

assuming this is correct, you can really manipulate either side and you should arrive eventually arrive to same sides. But in this case you usually manipulate the more complex side. So I'll manipulate the left side.

Original Equation:

csc^2(t)-cos(t)*sec(t)=cot^2(t)

Rewrite csc and sec, using the reciprocal identities:

(\frac{1}{sin(t)})^2-cos(t)*\frac{1}{cos(t)}=cot^2(t)

multiply cos(t) and 1/cos(t) and also distribute the exponent:

\frac{1}{sin^2t}-1=cot(t)^2

Multiply 1 by sin^2(t)/sin^2(t)

\frac{1}{sin^2(t)}-\frac{sin^2(t)}{sin^2(t)}

subtract the numerator

\frac{1-sin^2(t)}{sin^2(t)}

Pythagorean Identity:

sin^2(t)+cos^2(t)=1

subtract sin^2(t) from both sides

cos^2(t)=1-sin^2(t)

Use this to rewrite the numerator:

\frac{cos^2(t)}{sin^2(t)}

Rewrite using the reciprocal identities:

cot^2(t) = cot^2(t)

You might be interested in
The scale drawing of a rectangular oty park measures 10.0 cm by 50 cm
satela [25.4K]
The answer is 2... I think idrk 2 second ago was I thinking abt Damon Salvatore bunt GOOD LUCK!!!
6 0
3 years ago
The measure of angle 3 is 42°. <br><br> What is the measure of angle 1 in degrees?
Svetradugi [14.3K]

Answer:

Angle 1 is 48°

Step-by-step explanation:

So angle 1 + angle 2 + angle 3 = 180°

Angle 2 = 90°

Angle 3 = 42°

180 - 90 - 42 =  48°

3 0
3 years ago
Given two angles in each triangle, how can you determine if two triangles are similar?​
goldenfox [79]

Answer:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal. When the three angle pairs are all equal, the three pairs of sides must also be in proportion.

Step-by-step explanation:

can you please mark me as brainliest

7 0
3 years ago
Read 2 more answers
What is the sum in simplest form for 5/8+2/5
Bogdan [553]
(5/8)+(2/5)= 

so you need a common den so in this case its 40

so we multiply to get 40 like

(5/5)(5/8)+ (2/5)(8/8)=

25/40 + 16/ 40 = 41/40
5 0
3 years ago
What is the leading coefficient of the following expression: 5x^4-7x^3+2x+1​
never [62]

Answer:

5

Step-by-step explanation:

The leading coefficient belongs to the term with the largest exponent

Given

5x^{4} - 7x³ + 2x + 1 ← in standard form

The leading term is 5x^{4} ← with leading coefficient 5

5 0
3 years ago
Other questions:
  • Slope =<br> ; y-intercept = -3
    14·1 answer
  • A rectangle is 1/2 feet long and 3/4<br> feet wide.
    5·2 answers
  • Suppose that G(X) = F(x+ 9). Which statement best compares the graph of
    6·2 answers
  • Where can a range be found on a graph
    12·1 answer
  • 80 as a product of prime factors
    15·2 answers
  • Imagine a population of 100 individuals, with the initial frequencies A1 = 0.7 and A2 = 0.3. If A1 and A2 are selectively neutra
    10·1 answer
  • Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find the percentile corresponding to the d
    5·1 answer
  • Class of 50 students dressed up 38% have white shirts. How many are wearing white shirts?
    11·1 answer
  • What is cubic spline?​
    8·2 answers
  • 25
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!