Math, asked by rajeshsurisetty951, 10 months ago

Sin 47 + sin 61 -sin 11 -sin25

Answers

Answered by kokasaisrikanth06

0

Answer:

0.9925

Step-by-step explanation:

please mark this answer as brainliest

Answered by sunaychandarana682

2

Answer:

Step-by-step (sin47 - sin25) + (sin61 - sin11)

(2cos36 x sin11) + (2cos36 x sin25)

2cos36 ( sin11 + sin25)

4cos36 x sin18 x cos7

sin18 = (root5 - 1)/4 and cos36 = (root5 + 1)/4

so on solving we get, cos7.

:

Previous Question

Next Question

Similar questions

English, 5 months ago

Read the following passage and answer the questions below: A little after noon on that distinguished Saturday I reached the ship and and went on board. All was bustle and confusion. The pier was crowded with carriages and men; passengers were arriving and hurrying on board; the vessel’s decks were encumbered with trunks and valises; groups of excursionists, arrayed in unattractive travelling...

Chemistry, 5 months ago

The element which exhibits more than one valency is said to exhibit valency.

English, 5 months ago

Kolkata is the busiest city in West Bengal (change into complex sentence) ...

English, 10 months ago

Which lines tell us that the poet is no longer a child?

History, 10 months ago

What were good habits of Jahangir...

Science, 1 year ago

why is the philippines called an archipelago...

Math, 1 year ago

factorise 12 a square B minus 6 a b square ...

Science, 1 year ago

essential substances in food that help our body grow well and stay healthy are called ...