Math, asked by dmanojan2993, 1 day ago

evaluate sin75 - sin15 without using a calculator

Answers

Answered by kalyanlakkimsetty
0

Answer:

sin(75-15)=sin(60)=1/2

Answered by selvamsasimaha
0

Answer:

By writing sin 75 as sin (30+45)

Now we can use the formula

Sin (A+B)= sinAcosB+cosAsinB

Sin (30+45)=sin 30cos45+cos30sin45

= 1/2*1/√2+√3/2*1/√2

= (1+√3)/2√2

=(1+1.732)/2*1.414

=2.732/2.848

=0.967 appox

Step-by-step explanation:

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