Question

सिद्ध करो कि sin30°cos60° + cos30°sin60° = 1​

Answer 1

Answer:

As you know

sin 30°= 1/2

cos 60°= 1/2

cos 30°=sin 60°= √3/2

So now putting all these things in the question

1/2×1/2+✓3/2×✓3/2=1/4+3/4=4/4=1

Hence proved

Answer 2

Step-by-step explanation:

first change the cos60 into sin 30 (cos 90 -30)..and sin 60 into cos 30 (sin 90-30)...and multiply sin 30 with sin 30 and cos 30 with cos 30 ..u will get sin 30 sq +cos 30 sq and that is equals to 1