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
adell [148]
3 years ago
15

What is the value of sin2a + cos2a + sec2a-tan2a Please

Mathematics
1 answer:
Artemon [7]3 years ago
5 0

Answer:

2

Step-by-step explanation:

sin²a + cos²a + sec²a - tan²a

sin²a + cos²a = 1

1 + tan²a = sec²a

So, sec²a - tan²a = 1

sin²a + cos²a + sec²a - tan²a

= 1 + 1 = 2

You might be interested in
Which comparison is true ?<br><br> 3/4 &gt; 7/8<br> 1/2 &lt; 5/8<br> 2/3 &lt; 3/8<br> 7/8 &gt; 9/10
Cloud [144]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I need help with math questions
V125BC [204]

Answer:

10) C or D

11) C

12) B


Step-by-step explanation:


3 0
4 years ago
Answer question from picture.
Anna007 [38]

The limit (as 'x' approaches zero) of    x²/(2x+1)  is 

             0 / (0+1)  =  0 .

You get this by substituting the limit in place of 'x'.

Sometimes that doesn't work.  Sometimes it gives you
monstrosities like   0/0,   or   1/0,   or   ∞/∞ .

But it works for this one.  There's nothing wrong with  0/1  =  zero .
4 0
4 years ago
What is the answer to -2/3x4
vova2212 [387]

Answer

-8/3 (fraction)

or in decimal form it would be -2.6 (the six would be repeating)

Step-by-step explanation:

7 0
3 years ago
Which choice is the most efficient first step to solve this set of equations?
Minchanka [31]

Answer:

the answer is B

Step-by-step explanation:

since one equation is already simplified then you shall plug in the other  equation into the other to substitute and simplify

7 0
3 years ago
Read 2 more answers
Other questions:
  • -4x+-6y=24 how do you solve?
    15·2 answers
  • PLEASE HELP ME!!!!!!!!!! 57-4t &gt;(their is an egual sign under the less then sign)13
    8·2 answers
  • a student solved the equation 3(2x-6)=4x+8 and found the solution to be x=2.6. How could you use estimation and mental math to s
    7·1 answer
  • Mary is two inches more than half as tall as John. Translate the sentence into an equation using M to represent Mary height and
    7·1 answer
  • each package contains 4 boxes each box contains a 7 pound bag of beans and a bag of rice the bags of rice are all identical
    10·2 answers
  • Whst is the answer to 1 3/4 - 7/10 = ?
    5·2 answers
  • The function C=120+.20m represents the cost see in dollars of renting a car after driving miles how many miles would a customer
    8·1 answer
  • Help me pls<br><br> What is a visual Overlap
    13·1 answer
  • A married couple had a combined annual income of $81,000. The wife made $9000 more than her husband. What was each of their inco
    13·1 answer
  • Rihanna bought 3 pounds of oranges for $2.52. How much did she pay per<br> pound?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!