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
FinnZ [79.3K]
3 years ago
14

Prove the identity ​

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Sinx.cosy+cosx.siny-(sinx.cosy-cosxsinY)

Sinx.cosy+cosx.siny-sinx.cosy+cosxsiny

2cosx.siny

Rhs proved

You might be interested in
If 30g of sugar is needed to make 4 cakes how much grams of sugar is needed to make 7 cakes
arsen [322]
There's two ways to do this.

The first way:
Work out the amount of sugar needed to make one cake, and then multiply that by 7.

30 grams ÷ 4 cakes = 7.5 grams for 1 cake.
7.5 grams × 7 cakes = 52.5 grams for 7 cakes.

The second way:
Work out the ratio of sugar:cake by doing 7 ÷ 4, and then multiplying that value by 30.

7 cakes ÷ 4 cakes = 1.75
1.75 × 30 grams = 52.5 grams for 7 cakes. 

Either way, the answer is 52.5 grams.
6 0
3 years ago
A 9' x 9' square has a corner removed that measures 2 feet by 2 feet. What is the new area of the larger shape in feet?
sveta [45]
9*9=81
2*2=4
81-4=77
77 square feet.

Hope this helps :)
5 0
3 years ago
Read 2 more answers
Lewis is 0.9 metres tall.<br>Tim is 0.15 metres taller than Lewis.<br>How tall is Tim?​
Luda [366]

Answer:

D33Z NUTZ

Step-by-step explanation:

BAHHAHAHAHHAH louis is 5'8

7 0
3 years ago
Read 2 more answers
please help asap! Which of the following statements is not true?(1 point) Every real number is also a complex number. For a comp
melomori [17]

Answer:

last statement is false

Step-by-step explanation:

3 0
3 years ago
Use properties to find the sum or product for 3x78
Brut [27]
3\times78\\-----------------\\78=70+8\\-------------------\\=3\times(70+8)\\------------------------\\use\ distributive\ property:a(b+c)=ab+ac\\--------------------------\\=3\times(70)+3\times(8)=210+24=\huge\boxed{234}
4 0
3 years ago
Read 2 more answers
Other questions:
  • Help Asap! 30 Points!<br> If the measure of angle one is 95°, what is the measure of angle three?
    5·1 answer
  • Help me<br> ..........,..........................
    11·1 answer
  • What is 2493483 x 23822
    12·2 answers
  • Emme swims for 45 minutes. How many calories does she burn? _ calories
    9·1 answer
  • A sequence of three real numbers forms an arithmetic progression with a first term of 9. If 2 is added to the second term and 20
    14·1 answer
  • In the scale drawing of a park, the scale is 1cm: 10m. Find the area of the actual park.
    13·1 answer
  • 8) Use the following relation to find the domain(d) and range(r). {(-6,-5), (8, 5 points
    13·1 answer
  • What's 9-2x=35<br><br><br><br><br><br>please need help and explain it ​
    5·2 answers
  • What is the correct ratio?
    15·1 answer
  • Which on is the answer? Pls help
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!