Evaluate the following:(iv)(Sin30^@+tan4...

Evaluate the following:(iv)`(Sin30^@+tan45^@-Cosec60^@)/(Sec30^@+Cos60^@+Cot45^@)`

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Evaluate the following:(iii) Cos45^@/(Sec30^@+Cosec30^@)

Evaluate the following:(v) (5cos60^@+4Sec30^@-tan^2 45^@)/(Sin^2 30^@+Cos^2 30^@)

Evaluate the following:(i) sin 60^@ cos30^@+sin 30^@ cos 60^@

Evaluate the following: (Cosec30^@+Cosec60^@+Cosec90^@)/(Sec0^@+Sec30^@+Sec60^@)

Evaluate the following:(ii) 2 tan^@ 45^@+cos^2 30^@-sin^2 60^@

Evaluate: (sin 30+tan 45-cosec 60)/(sec 30+cos 60+cot 45)

Evaluate the following. cos("sec"^(-1) 3 +"cosec"^(-1)3)

Find the values of :d. (5sin^2 30^@+cos^2 45^@+4tan^2 60^@)/(2sin30^@cos60^@+tan45^@)

Without using trigonometric tables, evaIuate the following: sec37^@/(cosec53^@)+2cot15^@cot25^@cot45^@cot75^@cot65^@-3(sin^2 18^@+sin^2 72^@)

Prove that:a. sec30^@ tan60^@+sin45^@cosec45^@+cos30^@+cos30^@cot60^@=7/2

R G PUBLICATION-INTRODUCTION TO TRIGONOMETRY-EXERCISE

Evaluate the following:(ii)2 tan^@ 45^@+cos^2 30^@-sin^2 60^@
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Evaluate the following:(iii)Cos45^@/(Sec30^@+Cosec30^@)
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Evaluate the following:(iv)(Sin30^@+tan45^@-Cosec60^@)/(Sec30^@+Cos60^...
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Evaluate the following:(v)(5cos60^@+4Sec30^@-tan^2 45^@)/(Sin^2 30^@+C...
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Choose the correct option and justify your choice:(i)(2 tan 30^@)/(1+t...
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Choose the correct option and justify your choice:(ii)(1-tan^2 45^@)/(...
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Choose the correct option and justify your choice:(iii)sin 2A=2sin A i...
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Choose the correct option and justify your choice:(iv)(2 tan 30^@)/(1-...
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If tan(A+B)=sqrt3 and tan(A-B)=1/sqrt3:find A and B.
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State whether the following are true or false.Justify your answer:(i)s...
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State whether the following are true or false.Justify your answer:(ii)...
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State whether the following are true or false. Justify your answer:(ii...
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State whether the following are true or false.Justify your answer:(iv)...
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State whether the following are true or false.Justify your answer:(v)c...
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Evaluate:(i)Sin18^@/Cos72^@
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Evaluate:(ii)tan26^@/Cot64^@
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Evaluate:(iii)Cos48^@-Sin42^@
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Evaluate:(iv)Cosec31^@-Sec59^@
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Show that:(i)tan48^@tan23^@tan42^@tan67^@=1
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Show that(ii)Cos38^@Cos52^@-Sin38^@Sin52^@=0
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